energy mtg cards Token by Randy Gallegos Tap target untapped creature you control The 46 Best Energy Cards

Since you're mono-blue, I'm thinking a blink strategy is a no-brainer, ensuring you can wipe out multiple permanents every turn

Ajani, Nacatl Pariah / Ajani, Nacatl Avenger Now that Ive (mostly) gotten over the fact that the only Ajani who can be my commander isnt able to play many of the existing Ajani planeswalker cards, I have to admit Ajani, Nacatl Pariah is a pretty cool flipwalker cat

Shes a commander that grows harder to remove, and more dangerous, with each passing turn, without having to risk her life in combat to do so

Sidisi, Brood Tyrant [Best Self-Mill Token Engine for Graveyard Strategies] Sidisi, Brood Tyrant converts self-mill into repeatable Zombie token production , turning setup actions into board presence