standard card sleeve size Kings Sleeves: Card Game 63.5x88mm, 110 / Pack Card SleevesCard Sleeves Sleeve Kings Standard USA Card

Some of them can be pretty challenging

Example of Combos Blue-Eyes White Dragon + Dragon Revival Rhapsody + Blue-Eyes Twin Burst Dragon If you activate "Dragon Revival Rhapsody" while you have 2 "Blue-Eyes White Dragon" in your Graveyard, you can Special Summon them

The deck definitely felt the loss from Limited Terraforming, Limited ABC-Dragon Buster, and Semi-Limited Union Hangar, but still combos off

These counters double as control methods for some of the support cards, targets for destruction for others, 300 ATK/DEF reduction for each Alien that lists that quality, or simply a method for activating your Alien effects