It triggers on just about any interaction between a creature and a graveyard, even shaving a point off opposing life totals when creatures leave your graveyard
When paired with Underworld Breach and Lion's Eye Diamond, it pays for its own escape cost as you repeatedly escape it and the Diamond, building the storm count until you have enough Brain Freeze copies on the stack to mill your opponents
A Reddit user by the name of u/TheWizardOfFoz posted two images, the front and back of a token with the set code of ONE, with the front half showing a creature token for Phyrexian Mite and the back being a Poison Counter
But these are by far the most efficient Clones you can play, which comes in handy
Overall verdict Over the last week, Ive become incredibly enamoured by the Magic: The Gathering x Final Fantasy set
Each starter deck comes with a deck of 60 cards that includes two foil cards, 11 damage counters, 1 paper playmat, 1 paper Lore tracker token, game rules, and a booster pack with 12 cards