Umaro, Raging Yeti* Straight to you from the World of Ruin in the Revival Trance Commander Deck, Umaro is a beast of a design as a 6/6 for 6 with trample who will either pump your board, shoot something, or wheel you each turn at random
As such, we have Ashiok, Dream Render in the sideboard to bring in against decks that are using their graveyard for value (Esper Stax or anything with Arclight Phoenix or Commander the Dreadhorde, for example)
So long as there are fewer blockers than Thalia and The Gitrog Monsters power, you can kill each of them and still deal combat damage to your opponent
This harks back to Declaration in Stone, which was also two mana, but was a sorcery, exiled the creature and couldnt target planeswalkers, but did hit every creature that shared a name with the target
Here is our current list of potential sets for standard packs