Card Rulings talk:Celestia, Lightsworn Angel

if i normal summon celestia with a lightsworn as a tribute i have to discard 4 cards of my deck and 2 are lightsworns. so i have 4 cards in my deck and i have lightsworn garoth on the field later discarding my 4 cards what happened? i loose the duel 'cause i have to draw 2 cards or the garoth's effect doesnt activate?