Spawnbed Protector
Creature — Eldrazi
At the beginning of your end step, return up to one target Eldrazi creature card from your graveyard to your hand. Create two 1/1 colorless Eldrazi Scion creature tokens with "Sacrifice this token: Add 
."
"They are mere vestiges of the titan's true form. Their deaths are but a brief respite." —Ugin
Maxime Minard
Rulings
You do not have to choose a target for Spawnbed Protector's ability, and if you don't, you will still create Eldrazi Scion tokens. If you do choose a target but the target Eldrazi creature card is illegal as Spawnbed Protector's ability tries to resolve, it won't resolve and none of its effects will happen. You won't create Eldrazi Scion tokens.
(wotc • 2024-06-07)
Rulings
You do not have to choose a target for Spawnbed Protector's ability, and if you don't, you will still create Eldrazi Scion tokens. If you do choose a target but the target Eldrazi creature card is illegal as Spawnbed Protector's ability tries to resolve, it won't resolve and none of its effects will happen. You won't create Eldrazi Scion tokens.
(wotc • 2024-06-07)