Zemhopof, Ageless Sentinel

Flash
Hexproof, Flying,
Whenever an opponent draw a card, you may
pay {w}{u}. If you do, creature two treasures.
Whenever an opponent casts a spell, you may tap
Zemhopof and pay {2}{u}{u}. If you do, counter
that spell.
Whenever an opponent searches their library,
sacrifice Zemhopof, search you library for a card,
put it into your hand, and shuffle.