mtg assassin's creed starter kit cards Magic: The Gathering - Review Brotherhood Spy | Universes Beyond:

This is easy to crew and attack with, and it's going to give you a land every single time you do

Jeskai commanders that have special effects related to instant and sorcery spells can also benefit from aftermath cards

The potential to activate it multiple times a turn lets you get really far ahead, and it does all the planeswalker things provides board presence, card advantage, and removal in a single card

"In general, you can only activate Exhaust abilities once per game unless you're doing shenanigans" - Max McCall The last key mechanic is Saddle, returning from Thunder Junction

Once you choose to do so, the ability will no longer trigger for the rest of the turn