yugioh competitive zombie deck Yu-Gi-Oh! - Ryu Kokki (SDZW-EN011) - Structure World - 1st Edition card Main Deck + 1 Zombie deck for coneriia :

6 Blue-Eyes Spirit Dragon The only Blue-Eyes Synchro Monster, Blue-Eyes Spirit Dragon, helps you control the field with three effects

Though it banishes itself if it leaves the board after the latter, using it for a Rank 6 Xyz play circumvents this

C Common Firewall eXceed Dragon X DARK Rank 4 [ CyberseXyzEffect ] ATK 2500 DEF 2000 2+ Level 4 monsters This Xyz Summoned card gains 500 ATK x the total Link Rating of Link Monsters linked to this card

Creature Human Shaman

Luckily, you have Druddigon as a stall card that prevents your opponent from attacking

Being able to trade in your worst permanent for one of your opponent's best permanents while also messing with all your opponents' boards is such a powerful ability