All creatures get -X/-0, where X is the number of cards in your hand.
This spell costs {1} less to cast for each instant and sorcery card in your graveyard. You have no maximum hand size. At the beginning of your upkeep, put a knowledge counter on The Magic Mirror, then draw a card for each knowledge counter on The Magic Mirror.
Defender (This creature can’t attack.) When Grozoth enters, you may search your library for any number of cards that have mana value 9, reveal them, put them into your hand, then shuffle. {4}: Grozoth loses defender until end of turn. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
({B/R} can be paid with either {B} or {R}.) Flying When Avatar of Discord enters, sacrifice it unless you discard two cards.
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) {T}: Add {B}, {R}, or {G}.
Reach, trample, protection from multicolored Stonecoil Serpent enters with X +1/+1 counters on it.
Target player sacrifices an attacking creature of their choice. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)
Flying, haste Whenever Rankle, Master of Pranks deals combat damage to a player, choose any number — • Each player discards a card. • Each player loses 1 life and draws a card. • Each player sacrifices a creature of their choice.
Each other creature you control enters with a number of additional +1/+1 counters on it equal to Master Biomancer’s power and as a Mutant in addition to its other types.
Necrogoyf’s power is equal to the number of creature cards in all graveyards. At the beginning of each player’s upkeep, that player discards a card. Madness {1}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
+1: Chandra Nalaar deals 1 damage to target player or planeswalker. −X: Chandra Nalaar deals X damage to target creature. −8: Chandra Nalaar deals 10 damage to target player or planeswalker and each creature that player or that planeswalker’s controller controls.
+1: Target permanent doesn’t untap during its controller’s next untap step. −2: Ajani Vengeant deals 3 damage to any target and you gain 3 life. −7: Destroy all lands target player controls.
Return target creature with mana value X to its owner’s hand. You create X 1/1 blue Faerie creature tokens with flying.
Flying Haughty Djinn’s power is equal to the number of instant and sorcery cards in your graveyard. Instant and sorcery spells you cast cost {1}less to cast.