Gives Isaac a candle familiar that grants a Tears bonus of +0.4 for each room cleared in a row without taking damage, which stacks up to 5 times, represented by how brightly the flame burns. Starts at 1 stack, and resets to zero if damage is taken.
Holy Mantle / any similar item: The flame is not snuffed out when damage is negated by the shield.
BFFS!: The candle appears larger, but otherwise does not change.
Paschal Candle: No extra familiars or stat boosts are granted from copies.
A Paschal candle is a large, white candle used in liturgies in Western Christianity.
While Tainted Lazarus / Dead Tainted Lazarus holds this, the Flip effect takes priority over the flame increase effect, preventing the latter from occurring. After taking damage once, the flame is permanently snuffed out and the item effectively becomes useless.