Trident Dragion (MP24-EN147 Prismatic)

1 Dragon Tuner + 1+ non-Tuner Dragon monsters
Must be Synchro Summoned. When this card is Synchro Summoned: You can target up to 2 other cards you control; destroy those targets, and if you do, for each destroyed card, this card gains 1 additional attack during each Battle Phase this turn.
Attribute: FIRE
Prismatic Secret Rare
Monster
From the Yu-Gi-Oh set 25th Anniversary Tin: Dueling Mirrors