fiend deck yugioh Fiendsmith Engraver Fiend - Yugipedia

It's a transforming double-faced token

You can obtain the Alolan Dugtrio ex (4-Diamonds rarity) card by opening Extradimensional Crisis from Extradimensional Crisis set

Plus, the longer multiplayer format allows many of them to shine due to their abilities working better for massed creatures or in specific circumstances

I knew the one I had was a holo error, and its part of my complete secret wonders set

Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life

(Thats a second way to Special Summon your non-pawn chessmen.) Chess pieces have no special Summoning restrictions, so you can also Synchro Summon them like any other Synchro Monster