using mtg cards in d&d Secret Lair Roll for Initiative Superdrop has an awesome $30 reprint Killing druid with Myrkul in

(Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Draw a card

Second, and most importantly, it acts as a toolbox on a body

Commander Breakdown Killian, Decisive Mentor, is the Commander for the Silverquill Influence deck

All you need is a free ability you can target something with and a basic cost reducer like Semblance Anvil, and you can go infinite, casting and recasting the same creature over and over again

It resolves even if that activated ability is countered or otherwise leaves the stack

I actually put Snapcaster Mage on 5 and think the card is a little underplayed especially in combination with newer cards like Counterspell, DRC, Unholy Heat and also Lurrus of the Dream-Den