anger mtg card of the Gods (Time Spiral Remastered) – Noah Bradley Haste As long as Anger is in your graveyard and you control a Mountain Anger 122/254 Ultimate Masters UMA

It's also multicolored while not on the stack

There are also plenty of ways to deal damage to your own creatures, either with direct damage spells, or cards like Forerunner of the Empire

Assuming that I add a card to my inkwell every turn and that five-drops are superior to four-drops, I will never have a good chance to play that weaker four-drop, so its the perfect ink fodder

7 Keleth, Sunmane Familiar As a partner commander, you can pair Keleth, Sunmane Familiar with another legendary creature with partner, making it the perfect mount for your aggro Commander deck

Probability and statistics rule that now you have a much lower chance to see Ob in your opening hand