
Art by Jeremy Paillotin
Saved commander deck
Rex, Cyber-Hound
Generate energy counters through passive engines and ETB effects while recruiting key creatures into play or the graveyard. Rex can then exile target creatures to steal activated abilities like protection, untapping, and card advantage.
Prompt: I would like a deck for Rex, cyber-hound that generates its own energy counters outside of Rex attacking & uses the recruit mechanic.
Commander
1 cards
Rex, Cyber-Hound
{1}{W}{U}Legendary Artifact Creature — Robot Dog
Chosen commander for the requested strategy.
Ramp
8 cards
Mind Stone
{2}Artifact
Early mana acceleration that can be sacrificed for a card late game.

Etherium Sculptor
{1}{U}Artifact Creature — Vedalken Artificer
Reduces cost of artifact threats and energy payoff engines.

Everflowing Chalice
{0}Artifact
Scalable artifact mana ramp that synergizes with proliferate.
Card Draw
11 cards
Mulldrifter
{4}{U}Creature — Elemental
Flexible evoke draw creature for fuel and recruitment

Era of Innovation
{1}{U}Enchantment
Generates passive energy counters and converts them into draw

Aetherworks Marvel
{4}Legendary Artifact
Gains energy when permanents go to graveyard and cheats spells out

Fact or Fiction
{3}{U}Instant
Digs deep and places key creatures directly into graveyard for Rex

Brainstorm
{U}Instant
Cheap instant speed filtering to dig for key synergy pieces.

Frantic Search
{2}{U}Instant
Loots cards into the graveyard while untapping lands.
Removal
11 cards
Glen Elendra Archmage
{3}{U}Creature — Faerie Wizard
Gives Rex an active noncreature counterspell ability

Siren Stormtamer
{U}Creature — Siren Pirate Wizard
Inexpensive protection capability for Rex to steal

Resculpt
{1}{U}Instant
Exiles troublesome artifacts or creatures at instant speed.

Arcane Denial
{1}{U}Instant
Unconditional counterspell that keeps card flow moving.
Threats/Wincons
17 cards
Aetherling
{4}{U}{U}Creature — Shapeshifter
Gives Rex evasion, stat boosts, and self-exile protection

Walking Ballista
{X}{X}Artifact Creature — Construct
Gives Rex direct ping damage activated ability

Steel Hellkite
{6}Artifact Creature — Dragon
Provides Rex a repeatable board-wipe ability

Simic Manipulator
{1}{U}{U}Creature — Mutant Wizard
Gives Rex an ability to steal opposing creatures using counters

Sentry Bot
{4}{W}Artifact Creature — Robot
Squad mechanic creature that generates energy on ETB

Gary Clone
{1}{W}Creature — Human Citizen
Squad creature mechanic for building a wide army

Securitron Squadron
{1}{W}Artifact Creature — Robot
Squad creature that powers up incoming tokens

Gonti's Aether Heart
{6}Legendary Artifact
Generates energy on artifact ETB and grants an extra turn

Soul of New Phyrexia
{6}Artifact Creature — Phyrexian Avatar
Gives Rex ability to make all permanents indestructible

Electrostatic Pummeler
{3}Artifact Creature — Construct
Gives Rex an energy sink for massive power doubling

Aethersquall Ancient
{5}{U}{U}Creature — Leviathan
Generates steady energy each upkeep and bounces non-flying creatures

Arcanis the Omnipotent
{3}{U}{U}{U}Legendary Creature — Wizard
Provides a tap ability to draw three cards that Rex can copy.

Sphinx of Magosi
{3}{U}{U}{U}Creature — Sphinx
Activated ability draws cards and grows larger with +1/+1 counters.

Phyrexian Metamorph
{3}{U/P}Artifact Creature — Phyrexian Shapeshifter
Versatile clone that can copy any artifact or creature on the field.

Clever Impersonator
{2}{U}{U}Creature — Shapeshifter
Copies any nonland permanent, giving Rex useful target abilities.

Deadeye Navigator
{4}{U}{U}Creature — Spirit
Repeatedly blinks energy-generating creatures for continuous energy gain.

Memnarch
{7}Legendary Artifact Creature — Wizard
Provides powerful activated abilities to steal opposing permanents.
Utility
15 cards
Inexorable Tide
{3}{U}{U}Enchantment
Proliferates energy counters and +1/+1 counters on spellcast

Training Grounds
{U}Enchantment
Drastically reduces the cost of creature activated abilities for Rex.

Rings of Brighthearth
{3}Artifact
Copies Rex's gained activated abilities for extra value.

Illusionist's Bracers
{2}Artifact — Equipment
Doubles the effects of Rex's tap and activated abilities.

Propaganda
{2}{U}Enchantment
Taxes incoming attacks to keep you safe while setting up.

Aether Theorist
{1}{U}Creature — Vedalken Rogue
Generates energy on ETB and provides cheap scry filtering.

Thrummingbird
{1}{U}Creature — Phyrexian Bird Horror
Evasive creature that proliferates energy and brain counters on hit.

Flux Channeler
{2}{U}Creature — Human Wizard
Proliferates energy and counters whenever noncreature spells are cast.

Vedalken Shackles
{3}Artifact
Reusable activated ability to steal opposing creatures.

Willbreaker
{3}{U}{U}Creature — Human Wizard
Steals any creature targeted by Rex's abilities or spells.

Thassa, God of the Sea
{2}{U}Legendary Enchantment Creature — God
Grants unblockable to Rex to guarantee Brain Scan combat triggers.





































