Eclipse of Illusionary Shadows is the 4th Booster Set. There are a Total of 80 different cards (8x RRR, 12x RR, 20x R, 40x C) + 12x SP (Parallel). 2 additional R cards are included in the English version.
This is the first booster to only introduce 1 new clan, and feature support for 5 existing clans instead. More Trigger Units are included, making pure Shadow Paladin, Dimension Police, and Megacolony decks possible. The shininess of the R cards have changed once again, but RRR and SP rarity cards remained the same as Demonic Lord Invasion's. First card (Phantom Blaster Dragon) to have an alternate art for its SP version since Descent of the King of Knights, is included in this set.
This set includes 6 different Clans. There are cards from Shadow Paladin, Dimension Police, Kagero, Nova Grappler, Royal Paladin and Megacolony.