mtg toxic cards Contaminant Grafter - Creature - putrid ichor leaking from their rusted forms. Toxic Deluge and Creeping Corrosion

This can be a bit of a bummer if someone interferes with your plans, but Snap is still a very flexible removal spell that has its uses even when opponents aren't presenting threats

We're talking the 4th Edition, Ice Age, Visions, Stronghold, Exodus, Weatherlight, and Nemesis editions

It only modulates damage dealt to your opponents, not their permanents, but thats plenty

Also there are cards that have different font used (Candelabra of Tawnos, Tarmogoyf MM) or different spacing and leading (Flooded Strand) which should give away the cards at first glance

And when we were over there playing with them and hanging out at the Square Enix offices doing work, after hours, well play a commander or play Magic together

If you dont cast it, put it into your hand. Basically, as long as you use instant speed spells, you can constantly generate value by drawing cards or casting stuff for free, and thats really very hard to beat when youre also messing up everyone elses fun at the same time