Its not enough that this is a giant slug, but its sensory feelers have morphed into tentacles long enough to wrap around luckless adventurers and swallow them in that yawning mouth
(It can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever equipped creature attacks, until the end of defending player's next turn, that player gets two rad counters whenever they cast a spell
But I don't know if it is needed
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
Because of this, I dont recommend seeking them out to use as an intro product
How many tutors in a Commander deck