yugioh prize cards YU-GI-OH! - Spirit Reaper (BATT-EN013) - Battle Pack Tournament - Unlimited Edition Tier 3 Event Prizing –

If the creature an opponent controls is an illegal target as the ability resolves, nothing happens and the creature you control remains as it was

There is even some text at the very bottom of cards that is even smaller

You won't be able to exile more creature cards with Negative Zone Portal during your upkeep in time to have the ability trigger

This doduo has "additional ink" on its belly and I had 3 copies of this card all with the same error

Primaris Eliminator and Royal Warden both offer a lot to like as well, and I could see all three of these creatures existing in the same Cube, but Necron Deathmark gets the nod from me on having the highest abstract power level