Armed and Ready! (SGX1-ENS11) - Speed Duel GX: Duel Academy Box 1st Edition

Once per Duel, during your Main Phase, you can send 1 "LV" monster you control to the GY, then Special Summon the "LV" monster mentioned in its text from your hand, Deck, or GY, as if it were Summoned by the sent monster's effect.