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

When this creature enters, mill three cards. You may put a noncreature, nonland card from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on this creature. (To mill a card, put the top card of your library into your graveyard.)

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

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

Destroy target nonlegendary creature.

Counter target spell.

Target player sacrifices a creature of their choice.

Counter target instant spell.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Mill two cards. Draw a card.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.

Creatures your opponents control get -1/-1 until end of turn. Cycling {2} ({2}, Discard this card: Draw a card.)

Target player mills two cards. Draw a card.

({T}: Add {U} or {B}.) This land enters tapped.

({T}: Add {U} or {B}.) This land enters tapped.

Return target creature card from your graveyard to your hand. Put a +1/+1 counter on up to one target Zombie you control. Flashback {3}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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.)

Draw three cards. Islandcycling {1} ({1}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)