Emperor's Vanguard 189 (Ixalan)

Whenever this creature deals combat damage to a player, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

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