Commander 2017

Each player chooses a creature they control. Destroy the rest. Flashback 5WW (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As this artifact enters, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on this artifact. Creatures you control of the chosen type get +1/+1 for each charge counter on this artifact.

Whenever a creature you control with flying enters, it gains haste until end of turn. Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.

Dragon spells you cast cost 1 less to cast.

Dragon spells you cast cost 2 less to cast.

Flying XBB: Target creature gets -0/-X until end of turn and Drana gets +X/+0 until end of turn.

T: Add CCC. 3, T, Sacrifice this artifact: Draw three cards.

Flying Whenever a Dragon you control attacks, bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Earthquake deals X damage to each creature without flying and each player.

Whenever a creature you control with power 3 or greater enters, draw a card.

This land enters tapped. T: Add G or W.

1UR: Return this creature to its owner's hand. Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

T, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

T: Add one mana of any color that a land an opponent controls could produce.

Flying Whenever this creature or another creature dies, target player loses 1 life and you gain 1 life.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Destroy all creatures with power greater than target creature's power.

T: Add one mana of any color that a land an opponent controls could produce.

You may pay WUBRG rather than pay the mana cost for spells you cast.

3GW: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.) As long as this creature is monstrous, it has hexproof and indestructible.

(T: Add G.)

(T: Add G.)

(T: Add G.)

This land enters tapped. T: Add W or B.