Activate Woe Strider by sacrificing Highspire Artisan.
When Highspire Artisan dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When Highspire Artisan enters, its fabricate ability triggers, putting a +1/+1 counter on it.
Resolve the Woe Strider ability.
Repeat.
This clever loop relies on Isilu, Carrier of Twilight's passive ability to grant your other nontoken creatures persist, which sets the stage for Highspire Artisan to cycle endlessly in and out of the graveyard. By feeding Highspire Artisan to Woe Strider's sacrifice ability, you trigger the persist return, and upon re-entering the battlefield, Highspire Artisan's fabricate ability places a +1/+1 counter that immediately neutralizes the incoming -1/-1 counter. This creates an endless cycle of sacrifices that fuels infinite scrys and death triggers, all while Eirdu, Carrier of Dawn waits on the flip side with convoke to help you cast your creature spells.