Echo Chamber [Tempest] Normal Keeping your hand full is

Keeping your hand full is important for maximizing the power of the World Premiere Arcana Triumph Joker

When Ebon Dragon enters the battlefield

Set: Battle for Zendikar Type: Creature — Kor Soldier Ally Rarity: Uncommon Cost: {4}{W} Rally — Whenever Kor Entanglers or another Ally enters the battlefield under your control

Pay 3 life

" —*Keld Triumphant*

Echo Chamber [Tempest] Normal Keeping your hand full isSet: Tempest Type: Artifact Rarity: Rare Cost: {4} {4}, {T}: An opponent chooses target creature they control. Create a token that's a copy of that creature. That token gains haste until end of turn. Exile the token at the beginning of the next end step. Activate only as a sorcery.