Worn Powerstone [Commander 2015]Set: Commander 2015 Type: Artifact Rarity: Uncommon Cost: {3} Worn Powerstone enters the battlefield tapped. {T}: Add {C}{C}. Even a fragment of a powerstone contains within it not just energy, but spacevast dimensions trapped in fragile crystal.

plain speaking

Set: Innistrad Type: Enchantment Rarity: Rare Cost: {1}{W}{W} As Nevermore enters the battlefield

When a spell or ability an opponent controls causes you to discard this card

tapped artifact

Set: Judgment Type: Creature — Dragon Rarity: Rare Cost: {2}{R}{R} Flying

search your library for an Aura card that could enchant it

Set: Platinum: Arceus Type: Psychic Rarity: Uncommon Retreat cost: Colorless

Create a 1/1 white Spirit creature token with flying

create a 9/9 blue Kraken creature token

reveal the top card of your library and put that card into your hand

Other Knight creatures you control get +1/+1 and have indestructible

The owner of each creature card revealed this way with the lowest mana value puts it onto the battlefield