Obviously, there are the usual Simic +1/+1 counter strategies, but you can also use Krajs ability to give it the activated ability of a creature that untaps itself, thereby creating an infinite loop
If this spell was kicked, sacrifice that creature at the beginning of the next end step
This gives them a deeper understanding of the format that allows you to proficiently draft and play whichever archetype their seat presents them, even if it's one that shows up rarely
Andril, Narsil Reforged Aragorn, Hornburg Hero Legolas's Quick Reflexes Gimli's Reckless Might Isengard Unleashed Rohirrim Chargers #2
Cavendish gives you extra Don, making it easier for you to activate Leader effect and maintain your field development
Takes a few turns to fully power up