Changes: Sharp Key

Revision as of 16:30, 21 June 2021

Sharp Key is an activated item added in The Binding of Isaac: Repentance.

Effects

On use, Isaac holds a key above his head. Pressing a fire button removes one key and throws it as a piercing projectile. The key damages enemies, as well as opens locked doors and chests it hits.
- The key will also break the first rock it hits, as well as Key Blocks.
- The thrown key does damage equal to 5x Isaac's damage + 30.
- Enemies killed by Sharp Key have a chance to spawn the contents of a chest; the contents they can drop includes the rewards of any possible chest contents, including items.

Notes

Thrown keys follow the same unlocking rules as Dad's Key: They can unlock Secret Rooms, the doors to access Mines, Mausoleum, Mom's Heart in Mausoleum/Gehenna, Mega Satan, and the Strange Door. However, it cannot be used as a substitute for Red Key or open the doors to Boss Rush or ???.
- Doors will be opened in one thrown key, even if they require multiple keys or bombs to open.
- The only rooms Dad's Key can open that Sharp Key cannot are (Boss) Challenge Rooms.
Thrown keys can also destroy Angel statues, but not fire places.
Thrown keys cannot pierce or destroy Stoneys.
Destroying a rock will create a bridge at the opposite side the thrown key hit the rock from.
Despite being a substitute to bombs, thrown keys will not destroy shopkeepers.
Thrown keys will open all the locked chests they move through, allowing multiple chests to be opened with a single key.
- Only Locked/Eternal chests can be opened by Sharp Key; all other chests are unaffected.
  - In the case of Eternal Chests, thrown keys will only count toward opening the chest one time.
- Opening locked chests with thrown keys in Challenge rooms will not cause the challenge room to start spawning enemies.
Thrown keys will retain Isaac's tear /status effects, but are unaffected by items that replace Isaac's tears (such as Dr. Fetus, Brimstone, or Mom's Knife).
Whether or not an enemy gives chest contents when killed by Sharp Key is seeded per enemy.
The type of chest that enemies will give the contents of is determined by standard chest generation rules. This makes the contents of standard chests more common, and prevents enemies from giving the contents of Old chests or Mom's chest.
The pickups enemies killed by Sharp Key can drop are affected by items/trinkets that modify chest spawns/rewards.

Interactions

Golden Keys: Ignored by Sharp Key; it will still require and consume keys to use.
Spectral Tears: Rocks that thrown keys pass over have a chance of being destroyed. Key Blocks and doors are unaffected.
Guppy's Eye: There will be no overlay on enemies that would drop pickups on death.
Daemon's Tail: Enemies are much less likely to drop hearts; these hearts will still be black hearts.
Poker Chip: Enemies have a 50/50 chance to spawn extra pickups or an Attack Fly: The attack fly will be instantly killed by the thrown key.

Synergies

Mom's Key: Doubles the amount of pickups dropped by enemies.
Gilded Key: Enemies will only give the contents of locked chests. The pickups they can drop will also include runes and batteries.
The Left Hand: Enemies will only give the contents of red chests.
- As locked/red chests are able to give Items whereas normal chests cannot, the previous two trinkets also allow items to be obtainted through Sharp Key more consistently.
Continuum: Thrown keys can unlock doors they pass through after looping around the screen.
Ace of Spades/Child's Heart/Lucky Toe/Match Stick/Rusted Key/Safety Cap: If an enemy drops pickups, it has a ⅓ chance to drop an extra pickup; the pickup will be the one the trinket is associated with (random in the case of Lucky Toe).

Bugs

Bug!	If Isaac has Guppy's Eye, if an enemy drops chest contents on death, an overlay of the items they dropped will spawn where they died, which will persist until the room is cleared.

Seeds

PC 8RJF B4ND (First Shop)

PC 2EBK AWWR (First Shop)

PC 71CV S366 (First Shop)

Keys

Items

Trinkets

Cards and Runes

Cracked Key

The Binding of Isaac: Rebirth

@@ Line 12: / Line 12: @@
 == Effects ==
-* On use, Isaac holds a [[key]] above his head. Pressing a fire button removes one key and throws it as a [[Tear Effects#Effects|piercing]] projectile. The key damages enemies, as well as opens locked doors and chests it hits.
+* On use, Isaac holds a [[key]] above his head. Pressing a fire button removes one key and throws it as a [[Tear Effects#Effects|piercing]] projectile. The key damages enemies, as well as opens locked doors and [[chests]] it hits.
-** The key will also break the first [[rock]] it hits.
+** The key will also break the first [[rock]] it hits, as well as [[Blocks|Key Blocks]].
 ** The thrown key does damage equal to 5x Isaac's [[damage]] + 30.
-** Killing an enemy with a thrown key has a chance of dropping the contents of a [[Chest]]; this includes various pickups, consumables, and trinkets.
+** Enemies killed by Sharp Key have a chance to spawn the contents of a chest; the contents they can drop includes the rewards of any possible chest contents, including items.
+<!--* The chance for this to occur is somewhere between 1/10 - 1/15: Proper testing or looking into the code will be necessary to determine the exact chance.-->
-*** These contents can be modified by items that affect chests, such as {{i|Mom's Key}}, {{t|The Left Hand}}, and {{t|Gilded Key}}. In the case of The Left Hand and Gilded Key, items from the [[Red Chest (Item Pool)|Red Chest]] and [[Golden Chest (Item Pool)|Golden Chest]] pools, respectively, can be rarely dropped by enemies killed by Sharp Key.
 == Notes ==
-* Thrown keys can open the door to [[Mom's Heart]], the door to [[Mega Satan]], the door to access {{Stage|Mines}}, {{Stage|Mausoleum}}, and the [[A Strange Door| Strange Door]]. However, it cannot be used as a substitute for the {{I|Red Key}}.
+* Thrown keys follow the same unlocking rules as {{i|Dad's Key}}: They can unlock [[Secret Room]]s, the doors to access {{s|Mines}}, {{s|Mausoleum}}, [[Mom's Heart|Mom's Heart]] in Mausoleum/Gehenna, [[Mega Satan]], and the [[A Strange Door|Strange Door]]. However, it cannot be used as a substitute for {{i|Red Key}} or open the doors to [[Boss Rush]] or {{s|???}}.
-** If Isaac has {{i|Continuum}}, the thrown key may pass through the door to Mom's Heart and won't open it.
+** Doors will be opened in one thrown key, even if they require multiple keys or bombs to open.
-* Thrown keys can be used to open secret rooms.
+** The only rooms Dad's Key can open that Sharp Key cannot are [[Challenge Room|(Boss) Challenge Rooms]].
-** They cannot open the way to [[Boss Rush]] and {{s|???}}.
+* Thrown keys can also destroy [[Angel]] statues, but not [[Fire_Places|fire places]].
-* Destroying a rock will create a bridge at the opposite side the thrown key hit from.
+* Thrown keys cannot pierce or destroy [[Fatty#Stoney|Stoneys]].
-* One thrown key can open doors that require two keys to open.
+* Destroying a rock will create a bridge at the opposite side the thrown key hit the rock from.
 * Despite being a substitute to bombs, thrown keys will not destroy [[Shopkeeper|shopkeepers]].
-* Thrown keys can open multiple chests.
+* Thrown keys will open all the locked chests they move through, allowing multiple chests to be opened with a single key.
+** Only Locked/[[Chests#Eternal_Chest|Eternal chests]] can be opened by Sharp Key; all other chests are unaffected.
-** Opening locked chests in [[Challenge Room|challenge rooms]] will not activate the waves.
+*** In the case of Eternal Chests, thrown keys will only count toward opening the chest one time.
-* Thrown keys can't open locked [[Challenge Room]]s.
+** Opening locked chests with thrown keys in Challenge rooms will not cause the challenge room to start spawning enemies.
-* A key will be consumed even if Isaac has a [[Keys#Golden Key|golden key]].
-* Thrown keys will retain the effects of any tears, such as {{i|Sacred Heart}} or {{i|The Parasite}}.
+* Thrown keys will retain Isaac's [[tear_effects|tear]][[Status_Effects|/status effects]], but are unaffected by items that replace Isaac's tears (such as {{i|Dr. Fetus}}, {{i|Brimstone}}, or {{i|Mom's Knife}}).
+* Whether or not an enemy gives chest contents when killed by Sharp Key is seeded per enemy.
+* The type of chest that enemies will give the contents of is determined by standard chest generation rules. This makes the contents of standard chests more common, and prevents enemies from giving the contents of [[Chests#Old_Chest|Old chests]] or [[Chests#Mom.27s_Chest|Mom's chest]].
+* The pickups enemies killed by Sharp Key can drop are affected by items/trinkets that modify chest spawns/rewards.
+== Interactions ==
+* [[Keys|Golden Keys]]: Ignored by Sharp Key; it will still require and consume keys to use.
+* [[Tear_Effects#Spectral|Spectral Tears]]: Rocks that thrown keys pass over have a chance of being destroyed. Key Blocks and doors are unaffected.
+* {{i|Guppy's Eye}}: There will be no overlay on enemies that would drop pickups on death.
+* {{t|Daemon's Tail}}: Enemies are much less likely to drop hearts; these hearts will still be [[Hearts|black hearts]].
+* {{t|Poker Chip}}: Enemies have a 50/50 chance to spawn extra pickups or an [[Fly#Attack_Fly|Attack Fly]]: The attack fly will be instantly killed by the thrown key.
+== Synergies ==
+* {{i|Mom's Key}}: Doubles the amount of pickups dropped by enemies.
+* {{t|Gilded Key}}: Enemies will only give the contents of locked chests. The pickups they can drop will also include [[Cards_and_Runes#Runes|runes]] and [[batteries]].
+* {{t|The Left Hand}}: Enemies will only give the contents of red chests.
+** As locked/red chests are able to give Items whereas normal chests cannot, the previous two trinkets also allow items to be obtainted through Sharp Key more consistently.
+* {{i|Continuum}}: Thrown keys can unlock doors they pass through after looping around the screen.
+* {{t|Ace of Spades}}/{{t|Child's Heart}}/{{t|Lucky Toe}}/{{t|Match Stick}}/{{t|Rusted Key}}/{{t|Safety Cap}}: If an enemy drops pickups, it has a ⅓ chance to drop an extra pickup; the pickup will be the one the trinket is associated with (random in the case of Lucky Toe).
+== Bugs ==
+{{Bug|If Isaac has {{i|Guppy's Eye}}, if an enemy drops chest contents on death, an overlay of the items they dropped will spawn where they died, which will persist until the room is cleared.}}
 == Seeds ==
 {{plat|PC}} {{mode|normal|hard}} 8RJF B4ND (First Shop)
 {{plat|PC}} {{mode|normal|hard}}2EBK AWWR (First Shop)