When the School of the Unseen fell, so many magical treasures lay abandoned that no amount of death could deter the stream of thieves and desperate scholars.
Flying, lifelink Whenever another Detective enters the battlefield under your control and whenever a Detective you control is turned face up, Perimeter Enforcer gets +1/+1 until end of turn.
He makes sure no one sets foot in a fresh crime scene—not even himself.
If an opponent had a green creature enter the battlefield under their control this turn, you may pay {U} rather than pay this spell's mana cost. Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Whenever an opponent casts a spell, you may exchange control of Perplexing Chimera and that spell. If you do, you may choose new targets for the spell.
When Perrie enters the battlefield, put a shield counter on target creature. Whenever Perrie attacks, target creature you control gains trample and gets +X/+X until end of turn, where X is the number of different kinds of counters among permanents you control.