Rotom in a Microwave

Whenever you cast a spell with an odd mana value, convert Rotom. If you do, create Rotom mow, a legendary 3/3 black Robot artifact creature token with menace and deathtouch.

Whenever you cast a spell with an even mana value, convert Rotom. If you do, create Rotom fan,
a legendary 2/2 blue Robot artifact creature token
with flying and hexproof.