These are cards that only exist in MTG Arena and nowhere else
As with all Innistrad sets, theres a definite graveyard theme here and if theres one thing that inspires me to build wild decks, its new commanders that can use the graveyard
Aegar possesses the measured temperament of the frost giants, the combat aptitude of the fire giants, and the elemental prowess of both
They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, other creatures you control get +X/+X until end of turn, where X is the number of times this creature has mutated
One of the keys to doing that is creating spells to fill roles usually filled by noncreature spells, things like creature removal and card draw
You could have had four, but you chose to have two