Storm, cascade, chaos, and copying spells are all very Chaos-like
He makes games unwinnable much faster than many cards too which is nearly as good as winning the game
You also get two foil Floodborn characters, The Queen, Commanding Presence and Gaston, Intellectual Powerhouse, as well as some shift targets and a couple of support cards in Grand Duke and Lefou respectively
Vislor Turlough Vislor Turlough is similar to Xantcha, but it can be a bit more punishing to the player you give it to
A couple of cards like Involuntary CooldownInvoluntary Cooldown have taken stun counters a step further to let you put them on artifacts too, which is very nice, turning off mana rocks or vehicles for a turn, and after jumping through quite a lot of hoops The Watcher in the WaterThe Watcher in the Water will stun a nonland permanent