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Commander Nexus
  1. Commander Nexus
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  3. Rex, Cyber-Hound

Command zone

Rex, Cyber-Hound

Rex, Cyber-Hound

Legendary Artifact Creature — Robot Dog

Rex wants a deck that saves up energy and spends it on stronger effects. It also suits a deck that wins by emptying its opponents' decks.

  • Mana cost1 genericwhiteblue
  • White, Blue ()
  • Power / toughness2 / 2
  • RarityRare

Whenever Rex deals combat damage to a player, they mill two cards and you get energyenergy (two energy counters).

Pay energyenergy: 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.

Build a deck with Rex Find it in the app

Archetypes
Themes

Cards That Fit Rex, Cyber-Hound

Picked for what they do in Rex's deck. When two cards do the same job, the one with the lower comes first. All of them fit Rex's color identity.Mana ValueThe total amount of mana a card costs, all added up. A card costing two generic and one green has a mana value of three. Wizards renamed this from "converted mana cost" in 2021, so older cards and articles may still use the old name.Sol RingOpen the full glossary

plan6

The 6 Cards

plan6

The 6 Cards

Rulings for Rex, Cyber-Hound

explain how Rex works in tricky situations. They come from Wizards of the Coast, the company that makes Magic.RulingThe official answer to how a card works in a tricky situation. Most rulings are written by Wizards of the Coast, the company that makes Magic, and a few are notes from Scryfall, the card database Magic players use. A ruling explains a card. It does not change what the card says.Open the full glossary

Wizards of the Coast 8 Mar 2024

If an activated ability of a card in exile with a brain counter on it references the card it's printed on by name, treat Rex's version of that ability as though it referenced Rex, Cyber-Hound instead. For example, say Arcade Gannon (which has the ability "{T}: Draw a card, then discard a card. Put a quest counter on Arcade Gannon.") is in exile with a brain counter on it. You would treat Rex's version of the ability as though it said "{T}: Draw a card, then discard a card. Put a quest counter on Rex, Cyber-Hound."

Wizards of the Coast 8 Mar 2024

Rex gains only activated abilities. It doesn't gain triggered abilities or static abilities. Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities and may have colons in their reminder text.

2 rulings, all written by Wizards of the Coast. Read the originals on Gatherer ↗

Similar Commanders

Commanders that share the most with Rex, and what they share.

Color identityEvery color of mana symbol on a card, in its cost and in its rules text. Your commander's color identity sets the limit for your whole deck: every other card has to fit inside it. A deck led by a green and white commander cannot play a card with any blue in its color identity.Open the full glossaryWUPlayers write colors as letters: W for white, U for blue. Blue is U because B was already taken by black.EnergyEnergy decks collect energy counters, a resource you save up across turns, then spend them on stronger effects. Energy belongs to you, not to any card, so losing your cards does not take it away.Open the Energy pageEnergy ResourceUses energy, a resource written {E} that you collect and spend. Energy sits with you rather than on any one permanent, so it survives anything that destroys your board. Aether Hub, Guide of SoulsOpen the Energy Resource pageMillPuts cards from the top of a player's library, the deck they draw from, straight into their graveyard. Aimed at opponents it can win the game, because a player who has to draw from an empty library loses.Open the Mill pageCounter ManipulationAdds, moves or multiplies counters already on permanents. It works on any kind (+1/+1, loyalty, charge), so the same card can serve very different decks. Karn's Bastion, Doubling SeasonOpen the Counter Manipulation pageSaboteurTriggers when a creature deals combat damage to a player, so the reward comes from connecting rather than from the damage itself. Evasion makes these far more reliable. Ragavan, Nimble PilfererOpen the Saboteur pageMillMill decks win by emptying opponents' libraries, the decks they draw from: a player who has to draw from an empty library loses the game. Milling means putting cards from the top of a library straight into the graveyard.Open the Mill page