The unifying factor seems to be the Quandrixs affinity for 0/0 Fractal tokens, so the strength of those cards will largely determine the playability of this legend in Standard
A 4/3 for 3 mana with multiple abilities is just a great rate, but this guy drawing you creatures whenever another one of your creatures dies is one of the better abilities you could ask for
This card sounds like a great way for red to punish players who lean too far into artifacts while allowing you to create some Treasures at the same time
And that's just the static ability, we still have three loyalty abilities to unpack
You see this giant green creature that looks like it's a massive caterpillar-serpent thing
Its probably that you get to play red cards, which I fundamentally think at the most fun-promoting cards in Commander, augmenting any color or color pair with the juice to get things done with a little chaos and unpredictability thrown in there for good measure