2 cards where the name includes “mikaeus”

Mikaeus, the Lunarch (March of the Machine Commander #197)

Mikaeus, the Lunarch {X}{W}

Legendary Creature — Human Cleric

Mikaeus, the Lunarch enters the battlefield with X +1/+1 counters on it.

{T}: Put a +1/+1 counter on Mikaeus.

{T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

0/0

Illustrated by Steven Belledin

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Mikaeus, the Unhallowed (Commander Masters #173)

Mikaeus, the Unhallowed {3}{B}{B}{B}

Legendary Creature — Zombie Cleric

Intimidate (This creature can’t be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a Human deals damage to you, destroy it.

Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner’s control with a +1/+1 counter on it.)

5/5

Illustrated by Chris Rahn

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

The message was clear to Sorin—time to search for something else.