Enrage could be a really good mechanic if you have cards to force creature combat, like Prey Upon.
Santuli
This seems strong for limited, dang. Makes it a pain to block, especially when you’re getting low on Life. Kind of like Afflict 3, which I underestimated in Limited and won me more than one game, even a board stall.
Hedronal
Loads more playable than the RRR rare dino, for a similar effect. While smaller, the repetition and only RR in the cost are a big upside.