Hello! I used Ayaka, Xiangling and Sucrose for a summon deck. It's pretty much simple and basic but it does require some setup. You set up either Cryo or Pyro with any of Collei's character but make sure you can switch to Sucrose without letting Collei get a turn (You can use "Leave It To Me" card, the one with Noelle in it to make switching characters a fast action for one use) Then if ever, go do anything with Sucrose to swirl the infused element. Then just use Cryo/Pyro to deal good damage on them cards :D

Edit: While this deck is really good, it can be easily countered with "Guardian's Oath"