Ral Zarek

+1: Tap target permanent, then untap another target permanent.
−2: Ral Zarek deals 3 damage to any target.
−7: Flip five coins. Take an extra turn after this one for each coin that comes up heads.

Starfield Mystic

Enchantment spells you cast cost less to cast.
Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic.

Chandra’s Regulator

Whenever you activate a loyalty ability of a Chandra planeswalker, you may pay . If you do, copy that ability. You may choose new targets for the copy.
, , Discard a Mountain card or a red card: Draw a card.

Act of Treason

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)

Renowned Weaponsmith

: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts.
, : Search your library for a card named Heart-Piercer Bow or Vial of Dragonfire, reveal it, put it into your hand, then shuffle your library.

Starfield Mystic

Enchantment spells you cast cost less to cast.
Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic.

Chandra’s Regulator

Whenever you activate a loyalty ability of a Chandra planeswalker, you may pay . If you do, copy that ability. You may choose new targets for the copy.
, , Discard a Mountain card or a red card: Draw a card.

Starfield Mystic

Enchantment spells you cast cost less to cast.
Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic.

Chandra’s Regulator

Whenever you activate a loyalty ability of a Chandra planeswalker, you may pay . If you do, copy that ability. You may choose new targets for the copy.
, , Discard a Mountain card or a red card: Draw a card.

Umezawa’s Charm

Choose one —
• Target creature gets +2/+2 until end of turn.
• Target creature gets -1/-1 until end of turn.
• You gain 2 life.

Spark Double

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it’s a creature, it enters with an additional loyalty counter on it if it’s a planeswalker, and it isn’t legendary if that permanent is legendary.

Spark Double

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it’s a creature, it enters with an additional loyalty counter on it if it’s a planeswalker, and it isn’t legendary if that permanent is legendary.

Contentious Plan

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Draw a card.

Sarkhan Unbroken

+1: Draw a card, then add one mana of any color.
−2: Create a 4/4 red Dragon creature token with flying.
−8: Search your library for any number of Dragon creature cards and put them onto the battlefield. Then shuffle your library.

Spark Double

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it’s a creature, it enters with an additional loyalty counter on it if it’s a planeswalker, and it isn’t legendary if that permanent is legendary.

Ethereal Absolution

Creatures you control get +1/+1.
Creatures your opponents control get -1/-1.
: Exile target card from an opponent’s graveyard. If it was a creature card, you create a 1/1 white and black Spirit creature token with flying.

Ethereal Absolution

Creatures you control get +1/+1.
Creatures your opponents control get -1/-1.
: Exile target card from an opponent’s graveyard. If it was a creature card, you create a 1/1 white and black Spirit creature token with flying.

Rakdos Trumpeter

Menace (This creature can’t be blocked except by two or more creatures.)
: Rakdos Trumpeter gets +2/+0 until end of turn.

Domri, City Smasher

+2: Creatures you control get +1/+1 and gain haste until end of turn.
−3: Domri, City Smasher deals 3 damage to any target.
−8: Put three +1/+1 counters on each creature you control. Those creatures gain trample until end of turn.