Red Wyvern [HSRD-EN022] Secret Rare Judge Promotional Cards then change this card to

then change this card to Defense Position

Set: Speed Duel Decks: Duelists of Tomorrow Card type: Normal Monster Rarity: Common Attack: 1200 Defense: 700

A Synchro Monster that used this card as material is treated as a Tuner while face-up on the field

shuffle all 5 into the Deck

You can only use each of the following effects of "Devotee of Nephthys" once per turn

Red Wyvern [HSRD-EN022] Secret Rare Judge Promotional Cards then change this card toSet: High Speed Riders Card type: Synchro Effect Monster Rarity: Secret Rare Attack: 2400 Defense: 2000 1 Tuner + 1 or more non Tuner monsters During either player's turn, if a monster with higher ATK than this Synchro Summoned card is on the field: You can destroy the 1 face up monster on the field that has the highest ATK (your choice, if tied). This effect can only be used once while this card is face up on the field.