Giant Cell

Giant Cell is a passive item added in The Binding of Isaac: Repentance.

Effects

 * Whenever Isaac takes damage, he summons a micro-Isaac familiar, known as Minisaac, that chases nearby enemies and attacks on its own.
 * Minisaacs deal 1.35 base damage that scales with +0.15 per floor:
 * Minisaacs shoot 3 tears per second and their tear delay is not affected by Isaac's stats.
 * Minisaacs persists between rooms and floors.
 * Each Minisaac is spawned with 15 health points that are constantly drained with a rate of 0.4 per second. The draining stops when they reach 0.8 HP.
 * They are healed back to full HP whenever Isaac takes damage, even when the familiars cap is reached.
 * Enemies can damage Minisaacs by shooting projectiles at them or dealing contact damage.
 * Isaac's bomb explosions will also damage the familiars.
 * Minisaacs are immune to spikes and lasers.

Synergies

 * : Increases damage dealt by the familiars by 40%.
 * / : Minisaacs will be colored green but they will not get any benefits nor shoot out poison tears.
 * : Provides a penalty-free way of spawning Minisaacs and/or healing existing ones.
 * : Converts all micro-Isaacs into 1 Penny each upon use.
 * : Makes Minisaacs grey.

Interactions

 * Many familiar-modifying items and trinkets do not affect the Minisaacs. These include:
 * Baby-Bender
 * Child Leash
 * Duct Tape
 * Extension Cord
 * Forgotten Lullaby
 * Friendship Necklace
 * RC Remote
 * RC Remote
 * RC Remote

Seeds
2BST TFY6 (Treasure Room adjacent to spawn)