Trail of Mystery 192 (Commander: Murders at Karlov Manor)

Whenever a face-down creature you control enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle. Whenever a permanent you control is turned face up, if it's a creature, it gets +2/+2 until end of turn.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50