MTG >Combos >Gilder Bairn +Training Grounds +Darksteel Reactor +Paradise Mantle +

With at least one counter on Darsteel Reactor and all cards in play, equip Gilder Bairn with Paradise Mantle. Tap Gilder Bairn to add a green or blue mana Use Gilder Bairn's ability, costing 2 less due to Training Grounds, to untap him and put a counter on Darksteel Reactor Repeat the process until you have 20 or more counters on Darksteel Reactor to win the game.