Remember that on the stack, X spells have the mana value of however much you paid for it
Now, while Thrasios can certainly take advantage of a slower game, the reason I chose to put this list below that of Rograkh, Son of Rohgahh is that, when circumstances require, that list can play to a slower tune, as well
Theyre usually representations of the chittering rodents of our out-of-game world, though sometimes they get a bit more beastly
Mechanically, they tend to have abilities that emphasize their love of consumption, gaining temporary stat buffs when you, their controller, makes some kind of sacrifice, from sacrificing forests to, yes, skipping your next turn
Or maybe its been a while since youve given this big guy a go and need a bit of a refresher on how the deck works