mtg demon commander deck Be'lakor, the Dark Master DEMONS Warhammer 40k Magic Custom Comman – CommanderComplete Demonic Covenant

Pair it with a wheel effect or a big draw spell at the table and it can get ridiculous fast

You might even be able to activate the ability more than once since green is so good at creating huge amounts of mana

Illustrated by Mathias Kollros Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp

The other mode with Winter Orb is not to bother locking down your opponent fully, just to operate far better than he can and win the game in a fight with efficient creatures

It seems like a skill-testing card to play with, as attacking, blocking, and simply not attacking can all be correct lines