Activate Coveted Falcon by paying 1, turning it face up.
Coveted Falcon triggers, causing an opponent to gain control of Blightbeetle and causing you to draw a card.
Activate Woe Strider by sacrificing the undying creature.
When the undying creature dies, its undying ability triggers, returning itself from your graveyard to the battlefield without a +1/+1 counter on it due to Blightbeetle.
Resolve the Woe Strider ability.
Repeat from step 3.
This ingenious loop lets you sacrifice and recur an undying creature infinitely by weaponizing Blightbeetle's passive ability, which prevents opponents' creatures from ever receiving +1/+1 counters—meaning the undying trigger can never be permanently dampened. Woe Strider acts as the engine of the operation, providing the sacrifice outlet that continuously sends your creature to the graveyard while letting you sculpt your draws with its scry ability. Finally, the face-up trigger of Coveted Falcon quietly offloads Blightbeetle onto an opponent's side of the battlefield so its restrictive static ability actively targets them and sustains the entire infinite cycle.