This spell costs {1} less to cast for each instant and sorcery card in your graveyard.

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.

Draw three cards, then put two cards from your hand on top of your library in any order.

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Draw a card.

Counter target spell.

Mill two cards. Draw a card.

Return target creature to its owner's hand. Untap up to two lands.

Counter target noncreature spell unless its controller pays {2}.

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counter target artifact or enchantment spell.

Choose one — • Counter target red spell. • Destroy target red permanent.

Choose one — • Counter target spell if it's red. • Destroy target permanent if it's red.

Flying Jace's Phantasm gets +4/+4 as long as an opponent has ten or more cards in their graveyard.