Volcanic Cannon (SGX1-ENS16) [Speed Duel GX: Duel Academy Box]

Once per Duel, you can send 1 face-up "Tri-Blaze Accelerator" you control to the GY, then Special Summon 1 "Volcanic Doomfire" from your hand, Deck, or GY, ignoring its Summoning conditions. Your opponent takes no effect damage the turn you activate this Skill.