User blog comment:Misaka 10032/Ultima/Mayu Help/@comment-25090143-20141227033118

About ARTs: Don't play Bloody Slash. It is not worth the 3 ART space. (If you want to run Lv.5 Ultuma) nor it worth in 4 ART space.

In JP currently people rarely play Violence Splash anymore so as Poison Fangs. Not saying they're bad especially if you don't have Ancient Surprise, Poison Fang based deck is much more better than Ancient Weapon's. Nowadays JP plays AW base deck while playing either
 * lv.4 Iona with Mayu, AW based deck, ARTs is as follow:
 * 1-2 Ancient Surprise
 * 1 Idol Defense
 * 1 Spirit Salvage
 * 1-2 Dark Matter
 * 1 Last Select
 * 1 Dead Splash
 * lv.5 Iona with Mayu, AW based deck, ARTs is as follow:
 * 1-2 Ancient Surprise
 * 1 Spirit Salvage
 * 1 Idol Defense
 * 1 Dark Matter

AW based Iona will only be good with AS, as the new Umuru's TD gives you Ancient Surprise, you should as well try Ancient Weapon build too since many JP succeed in playing them. All of them run no more than 3 grade 5 AW and have very few grade 2 and 3 instead have more lv.1 and lv.4, the reason is obivious I guess?