If a creature you control would deal damage, it deals double that damage instead.
"Both complement and antithesis to his older brother Urza, Mishra also mastered the intricacies of artifice. It was Mishra's strength that first gave rise to the massive Phyrexian war engines on Dominaria, and it was his weakness that pushed him, Urza, and Dominaria itself to the point of annihilation."
Double
Format Legality
Standard Not_legal
Pioneer Not_legal
Modern Not_legal
Legacy Not_legal
Vintage Not_legal
Commander Not_legal
Pauper Not_legal
