A lightbulb's cycle is fairly straightforward. The card's info says: BRFT-EN060: Light Cycle Continuous Spell Once per turn: You can discard all cards in your hand to the Grave, then target LED Pony monsters in your Grave up to the number of cards discarded; if they're all still in the Grave, Special Summon them. You can only control 1 "Light Cycle". (Sparkle Rare)
