Mercurius

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

Effects

 * +0.4 speed up.
 * Opens most doors after entering a room, even in rooms with enemies, allowing Isaac to leave at any time.

Synergies

 * /: Provides infinite charges by clearing some enemies then leaving the room, and repeating.
 * /: Allows the possibility to farm health.
 * With enough patience, coins can be farmed.
 * Can farm unlimited health/coins.

Seeds
0FYV B9EG (Planetarium adjacent to spawn)

D771 QQNR (Planetarium adjacent to spawn)