Activate only as a sorcery.) If you choose to cast the instant or sorcery card, you do so while Impulsivity's first ability is resolving and still on the stack
It just so happens that the most synergistic cards for Tergrid are also the most unfun
(Whenever you cast a noncreature spell, the token gets +1/+1 until end of turn.) Equip Artifact - Equipment Firion, Wild Rose Warrior Equipped creatures you control have haste
Sure, useful cards from this part of Magics history can and will spike in price, but Ive seen people worried about the supply of cards like Wall of Kelp
Keep in mind this is any spell-Heros Downfall
If Eliminate the Competition has a home, its probably in a sacrifice deck, a sort of Aristocrats-style G/B deck or something similar