Both of these are impactful and, honestly, Detonate could end a game, but it would be absolutely amazing to finish a match with this MTG card
Kaito, Bane of Nightmares (Yes, we're aware this is a stretch on the definition we gave, but this clearly counts as a ninja)
Being an old-hat player that's been around for most of the life of the game, I often forget that a lot of folks I'm playing with have no idea about the old eccentricities of this game
Save your Chocobo art prints and Pinfinity pins for distribution during Chocobo Racing events
Menace makes the Goblin commander harder to block, and with plenty of Goblin pump spells and lords out, Rulik Mons can be a massive threat to the table
Ramp In addition to the standard mana rocks, green has access to an excellent land ramp package and mana dorks