EVs:252 Atk / 6 SpD/ 252 Spe
While increases in mana cost are associated with worse win rates for common and uncommon cards, for rare and mythic rare cards, a mana cost one higher increases the expected win rate when seen by 0.65% and 0.55%, respectively, with an approximate error of \(\pm\) 0.3%.
This is a rather interesting spin on foiling
His name is also part of this, as all the other Succubi in the archetype have names that mean dream or sleep in various languages, and all are exclusively female names, while Ialu is the only unisex one (that also means dream) (his name is also a reference to the anime Bend S, where they called the trap Surprise in the opening, and it fits with his function as a trap card)
They have to
First off is the obvious addition of Goblin Zombie which replaced Giant Rat is it more directly served Giant Rats purpose while also being a Dark attribute monster