Isu the Abominable
Legendary Snow Creature — Yeti, {3}{U}{U}
Oracle Text
You may look at the top card of your library any time.
You may play snow lands and cast snow spells from the top of your library.
Whenever another snow permanent you control enters, you may pay {G}, {W}, or {U}. If you do, put a +1/+1 counter on Isu.