mtg exert cards Rules Text: Exert, 36 cards Converge — Gain control of target creature if its power is less than or equal to the number of colors of mana spent to cast Exert Influence. Magic the Gathering Adventures: Amonkhet

Chaos Wand by Karl Christensen No matter what form of chaos you choose, I hope it makes for an enjoyable night at the Commander table

I named [casthaven]Queen Marchesa[/casthaven]

Mycosynth Lattice + Karn, Silver Golem - With both on the battlefield, pa 1 mana targeting an opponents land and it becomes a 0/0 artifact creature and dies

While it does need you to have a creature that is beefier than the victim, this type of instant speed removal is certainly desirable in Green

This spell type is very common in blue, specifically with control decks , but they rely on shutting down high-value plays and struggle to deal with lots of casts in a turn