One of the montage queens of Genshin Impact, Mona has some of the most impactful abilities in the game. She fits in well as an enabler, setting up for Elemental reactions and controlling the battle, but also acts as an exceptional carry threat as well - the choice is yours.
The numbers her Elemental Burst can throw out… well, you’ll see later.
Genshin Impact Mona guide
Mona excels at controlling mobs while also bringing impressive damage and elemental set-up. The question really comes down to whether you want to lean towards her utility and set-up or her damage and burst when you’re choosing her Catalyst.
The premier choice for a damage-focused Mona build. Mona’s damage is tied beautifully into every one of the stats Debut can provide, and the Crit DMG The Widsith offers innately is also great.
Even if you don’t want to run her as a DPS choice, The Widsith is also exceptional for a more utility-focused role purely because of how well it amps the power of her Elemental Burst if nothing else, even if it’s less focused around empowering Elemental Reactions.
On the other hand, Mappa Mare is exactly that. Elemental Mastery empowers all the reactions Mona could hope for (read: Vaporise and Freeze), while the Infusion Scroll ability also amps her Elemental DMG.
It’s arguably the best choice of Catalyst if you want to run Mona as an enabler, and it’s still good if you want to run her as a DPS or burst option. Better yet, Mappa Mare is forgeable so you don’t even need to roll for it.
Lost Prayer to the Sacred Winds