all class cards mtg Subtype: class, 34 (Gain the next level as a sorcery to add its ability.) This Cycle of Classes is

Because Standards power level is so much higher than usual, Wizards is either forced to print absurdly powerful cards or ban cards altogether to keep things interesting

Cone of Cold potentially taps down everyone for a whole turn and also hits new creatures as they come in

We can quickly fill our graveyard with any of blues looting spells, like Ideas Unbound and Frantic Search, then make Rex unblockable with whites protection spells and blues unblockable cantrips

the Weaponcraft Enthusiast is a 0/1 Aetherborn Artificer with the Fabricate 2 ability and a casting cost of two generic and one Black mana

It only takes one wheel or some consistent looting and rummaging to make both these cards sing

Card rarity comes down to the mechanics