Any time you cast a Cat or Dog spell, the card creates a Cat or Dog token - so it helps to have furry friends of both kinds in your deck
There are, of course, a bunch of cards that I don't have much interesting things to say, and some whose jokes might fly over my head
Circle of Protection: Red (T1, Ext, S, Block) The highest-ranking color hoser on this list -- and the most enduring of all
Four of the Five Flip 'Walkers Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar, Ajani, Nacatl Pariah // Ajani, Nacatl Avenger, Ral, Monsoon Mage // Ral, Leyline Prodigy, and Sorin of House Markov // Sorin, Ravenous Neonate have all been seeing a considerable amount of play, with Tamiyo, Ajani, and Ral basically being format staples and finding homes in Tier 1 decks
This pinnacle of evolution expresses itself as an ever-growing monstrosity that continuously generates resources and power before your eventual consumption of the game and all who play it
Many local game stores will take non-foil commons and uncommons for about $2 to $5 per 1,000 cards