Each instant and sorcery spell you cast costs less to cast for each creature it targets.Heroic — Whenever you cast a spell that targets Battlefield Thaumaturge, Battlefield Thaumaturge gains hexproof until end of turn.
When Nessian Game Warden enters, look at the top X cards of your library, where X is the number of Forests you control. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
Strive — This spell costs more to cast for each target beyond the first.Exile any number of target creatures. For each creature exiled this way, its controller creates a 4/4 blue Sphinx creature token with flying.
Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)When Crystalline Nautilus becomes the target of a spell or ability, sacrifice it.Enchanted creature gets +4/+4 and has "When this creature becomes the target of a spell or ability, sacrifice it."
Constellation — Whenever Skybind or another enchantment you control enters, exile target nonenchantment permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.