Shadowverse

Well, since we're on this topic, I don't have any of the following: not a single Elven Legion unit, except for the Wolf (I wouldn't mind getting an Ancient Elf/Tia), no Dominator, no Skullfaen, no Zirnitra, no Mythril Golem, no Atomic Lord (I don't really want one), no Gabriel, no Sahira, no Pluto, no Almiraj, no Fafnir, no Jeanne, no Sotona (I don't really want one, but I wouldn't mind getting it), no Merlin, no Cerberus, and no Lucy (I'm tempted to craft them, but I'm waiting for an update). Of the remaining legendaries, I only have three: Dasha, Bahamut, Pascal, Albert, and the Matriarch.

I'm not rushing to craft everything right away; I'm waiting to see what they add in the new expansion.

For the same reason, I'm holding back and not crafting anything for the Sylvan faction, even though with my current card collection, it's hard to play that faction effectively (I don't have any Roaches, no Ancient Elf, and not even any Bolt Throwers for the Wolf).