Armageddon Lord
Frost Titan
Rotting Titan
Give them builds that of the hard mode Titan quests and make it one stone per completion of the last hard mode Titan quest. The ability to spawn other versions is something I wasn't going to mention, but it would have been obvious without saying.
Titan Summoning Stones
Cuilan
Ayuhmii Shanbwa
would be fun, but for now i'd rather see the crystal guardian and spider with their own summon stones
but yea, more summon stones = more choices and more fun
but yea, more summon stones = more choices and more fun
Cuilan
But those would just be normal summons.