We've got primers on classic creature types like MTG goblins and MTG elves, but you might also want to know about the most roarsome MTG dinosaurs or the MTG vampires we're batty about.
[PZA] Waves of Aggression $14.50 I think this reprints art is spot on because, for me, nothing screams TMNT more than beat-em-up games, and those are well-known for having Waves of Aggression
No decks need it, nor even auto include it, but it is pretty playable in most decks
Whenever an opponents creature dies with a -1/-1 counter on it, you return it to the battlefield under your control
Cruel Somnophage Without the Blue side, this needs about three creatures in graveyards to be on-rate (and counting casting the Blue side, arguably closer to five.) Depending on creature density, that may not be too hard
Another cool facet of building boast around combat is the impressive variation between timing opportunities available