Malora, Dream Weaver

Creatures you control have "{t}; Look at the top card of your library. If this creature's converted mana cost is greater than that of the revealed card, you may draw it."
{t}; At the beginning of next combat, tap all creatures. Each attacking player may then have all creatures tapped this way deal damage to defending player equal to their power, and each defending player may gain life equal to the toughness of each tapped creature they
control.