Yakko Troll

When Yakko Troll enters the battlefield from anywhere, look at the target player's hand; you may choose a card from among them.

Whenever a player casts a spell with the same name
as any card chosen with Yakko Troll, place a +1/+1 counter on Yakko Troll, and it gains your choice of Hexproof or Deathtouch until the end of the turn.