It looks like you might have accidentally pasted some extra data tags, but you are asking about False PHD, a passive item introduced in The Binding of Isaac: Repentance expansion. What is False PHD?
Unlike the regular PHD item which converts all negative pills into positive ones, False PHD embraces the dark side. It identifies all pills on pickup and grants you one Black Heart immediately. However, it forces all of your good stat pills to become their bad, stat-decreasing counterparts. How it Works
The true power of this item comes from how it converts those negative pills into massive rewards:
Stat Down Pills: Whenever you consume a pill that lowers a stat (e.g., Tears Down, Health Down, Luck Down), it still lowers that stat, but permanently increases your Damage.
Non-Stat Down Pills: Consuming a bad or neutral pill that doesn’t affect raw stats (e.g., Amnesia, Addicted!, R U A Wizard?) rewards you with a Black Heart.
Retroactive Buffs: If you consume bad pills before picking up False PHD, the item will calculate those previous pills and grant you the damage buffs retroactively the moment you pick it up. Popular Synergies
Attention: I suspect False PHD is now the good black heart generator