Popular in Commander, Triumph of the Hordes grants all your creatures infect, turning their damage into -1/-1 counters to creatures and poison counters to players, and also gives them trample, ensuring that your opponent hits the game-losing threshold of ten poison counters
There is no secondary market for Arena, but overall it should be cheaper since you cant pay huge amounts of money for the most powerful cards second-hand
Summon: Knights of the Round This is an absolutely bonkers Sage, although I am a little curious about the expectation for this card
But Aetherize doesnt just fog it also bounces everything that attacked, making it a big tempo play
Obviously, youll be playing this in an artifact deck to reduce its mana cost as much as possible
Also of note, a legendary vehicle called the Weatherlight is here as Tornado, Sonic's Biplane, and thanks to a recent rules change, you could actually have that be your Commander if you are so inclined