The key description says "Hard", but it take means dungeon Hard, and not hard Hard, then I'll have to check it out then. Like what I'm hearing about the evo shards.
UPDATE: Enemies are 4*, lvl 75-80. No special talismans, all have the same +4k, +1kATT/MAG stat boosts. Definitely good for newer players! Really like this dungeon, and glad the keys open it up for 8hrs, takes the pressure off
The Icy Cosmic Talisman Souls need 500 frags, and I've got 2 frags per run so far. Bit of a long-term goal, but totally fine if this event runs every month
Prime, Future, Heal, Tranquillity, & Venom.
Where do Venom talis come from? Did you perhaps mean to have that achievement as Death Mark talis?