Rex, Cyber-Hound (Extended Art) (Surge Foil) [Fallout] Unfinity "The 'pinnacle' of advancement is

"The 'pinnacle' of advancement is a concept that exists only in the narrow minds of those with no ambition

Set: Commander 2014 Tokens Type: Token Creature — Elf Druid Rarity: Common {T}: Add {G}

Set: The List Type: Creature — Elemental Rarity: Uncommon Cost: {1}{G}{U} Whenever Risen Reef or another Elemental enters the battlefield under your control

Set: Worldwake Type: Instant — Trap Rarity: Rare Cost: {5}{R} This spell costs {1} less to cast for each attacking creature

When Cavalier of Night dies

Rex, Cyber-Hound (Extended Art) (Surge Foil) [Fallout] Unfinity "The 'pinnacle' of advancement isSet: Fallout Type: Legendary Artifact Creature Robot Dog Rarity: Rare Cost: {1}{W}{U} Whenever Rex, Cyber Hound deals combat damage to a player, they mill two cards and you get {E}{E} (two energy counters). Pay {E}{E}: Choose target creature card in a graveyard. Exile it with a brain counter on it. Activate only as a sorcery. Rex has all activated abilities of all cards in exile with brain counters on them.