2 cards where the name includes “memnarch”

Memnarch (Archenemy #112)

Memnarch {7}

Legendary Artifact Creature — Wizard

{1}{U}{U}: Target permanent becomes an artifact in addition to its other types. (This effect lasts indefinitely.)

{3}{U}: Gain control of target artifact. (This effect lasts indefinitely.)

In the blur between metal and flesh, Memnarch found madness.

4/5

Illustrated by Carl Critchlow

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Urtet, Remnant of Memnarch (Phyrexia: All Will Be One Commander #28)

Urtet, Remnant of Memnarch {3}

Legendary Artifact Creature — Myr

Whenever you cast a Myr spell, create a 1/1 colorless Myr artifact creature token.

At the beginning of combat on your turn, untap each Myr you control.

{W}{U}{B}{R}{G}, {T}: Put three +1/+1 counters on each Myr you control. Activate only during your turn.

2/2

Illustrated by Simon Dominic

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny

Though this query has ended, its relics still slumber in New Argive.