Discard Cow to Smallpox, Crack the Earth and sacrifice the token, just take the fact that Cow is a discard and another permanent to the next level
it's just a nice big creature to play late game
Cards marked with an Acorn security seal can only be used in casual play
Aggressive decks have a lot of card draw to this effect with cards like Firemane Commando and Aurelia, the Law Above
This means that theyll be able to cast the first spell they reveal on top of their library with mana value less than or equal to that of the card that they shuffled into their library
These include Emiel (blink, +1/+1 counters), Lathiel (+1/+1 counters, lifelink), Good-Fortune Unicorn (+1/+1 counters), Seraphic Steed (first strike, lifelink, creature tokens), and many more