Dictate of the Twin Gods

Flash
If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Crosstown Courier

Whenever Crosstown Courier deals combat damage to a player, that player mills that many cards.

Flitterstep Eidolon

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.)
Flitterstep Eidolon can’t be blocked.
Enchanted creature gets +1/+1 and can’t be blocked.

Karametra’s Favor

Enchant creature
When Karametra’s Favor enters, draw a card.
Enchanted creature has “: Add one mana of any color.”

Polis Crusher

Trample, protection from enchantments
: Monstrosity 3. (If this creature isn’t monstrous, put three +1/+1 counters on it and it becomes monstrous.)
Whenever Polis Crusher deals combat damage to a player, if Polis Crusher is monstrous, destroy target enchantment that player controls.

Mogis’s Marauder

When Mogis’s Marauder enters, up to X target creatures each gain intimidate and haste until end of turn, where X is your devotion to black. (A creature with intimidate can’t be blocked except by artifact creatures and/or creatures that share a color with it. Each in the mana costs of permanents you control counts toward your devotion to black.)

Karametra’s Acolyte

: Add an amount of equal to your devotion to green. (Each in the mana costs of permanents you control counts toward your devotion to green.)

Labyrinth Champion

Heroic — Whenever you cast a spell that targets Labyrinth Champion, Labyrinth Champion deals 2 damage to any target.

Groundshaker Sliver

Sliver creatures you control have trample. (A creature with trample can deal excess combat damage to the player or planeswalker it’s attacking.)

Seismic Stomp

Creatures without flying can’t block this turn.

Master of Cruelties

First strike, deathtouch
Master of Cruelties can only attack alone.
Whenever Master of Cruelties attacks a player and isn’t blocked, that player’s life total becomes 1. Master of Cruelties assigns no combat damage this combat.

Mirko Vosk, Mind Drinker

Flying
Whenever Mirko Vosk, Mind Drinker deals combat damage to a player, that player reveals cards from the top of their library until they reveal four land cards, then puts those cards into their graveyard.

Plasm Capture

Counter target spell. At the beginning of your next first main phase, add X mana in any combination of colors, where X is that spell’s mana value.

Sorin, Lord of Innistrad

+1: Create a 1/1 black Vampire creature token with lifelink.
−2: You get an emblem with “Creatures you control get +1/+0.”
−6: Destroy up to three target creatures and/or other planeswalkers. Return each card put into a graveyard this way to the battlefield under your control.

Tibalt, the Fiend-Blooded

+1: Draw a card, then discard a card at random.
−4: Tibalt, the Fiend-Blooded deals damage equal to the number of cards in target player’s hand to that player.
−6: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.

Experiment One

Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Remove two +1/+1 counters from Experiment One: Regenerate Experiment One. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Bomber Corps

Battalion — Whenever Bomber Corps and at least two other creatures attack, Bomber Corps deals 1 damage to any target.

Zameck Guildmage

: This turn, each creature you control enters with an additional +1/+1 counter on it.
, Remove a +1/+1 counter from a creature you control: Draw a card.

Dispel

Counter target instant spell.