As for artifacts to cheat, Spine of Ish Sah is a classic, but Portal to Phyrexia and God-Pharaoh's Statue do tons of work as well
Ruric Thar and His Beastly Fight Club
(Psemilla's Nymph token is
(If a permanent with a stun counter would become untapped, remove one from it instead.) If you didn't control another Dinosaur when you declared Pugnacious Hammerskull as an attacker, it doesn't matter whether or not you control one as its ability resolves
MTG mill cards might not be the top choice for competitive Magic: The Gathering players, but they're a popular (and at times powerful) part of the Magic ecosystem
Spider-Man, Miles Morales's last ability triggers only when he enters or attacks, not when any other creature named Spider-Man enters or attacks