Karlach, Fury of Avernus

Whenever you attack, if it's the first combat phase of the turn, untap all attacking creatures. They gain first strike until end of turn. After this phase, there is an additional combat phase.

Choose a Background (You can have a Background as a second commander.)

"Anyway! I'll be sailing with you from now on! I go by Kozuki Oden, but you can call me Yamato! Nice to meet you!"
--Yamato, Oni Princess