Mikaeus, the Unhallowed + Woe Strider + Gnarlbark Elm

Mikaeus, the Unhallowed

Woe Strider

Gnarlbark Elm

How it works

1. Activate Woe Strider by sacrificing Gnarlbark Elm.
2. When Gnarlbark Elm dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
3. Resolve the Woe Strider ability
4. Repeat.