>>56374809Greed Stamp with SUPER Super Chatto Time. Which is impossible to guarantee (you have something like a 0.3% chance of getting it, per Holobox) so unless you're as autistic as I am don't even bother trying. If you're asking for coin-grinding purposes grab Greed Stamp & regular SCT anyway, the sooner the better.
Crit hits heal her & increase her damage so CRT is her priority stat. But since it caps at 100% (and is arguably unnecessary long before that) I don't bother wasting item slots on Sake or GWS in Endless runs & wait for the incremental 3% increases once every slot's filled.
There isn't an incremental stat-up for Crit Damage, however. So buffs for that are valuable. The Botan goggles sticker, the new Lui glasses probably... Hope Soda is literally made for her, since she ideally wants every hit to be a crit & has a shitty Special that you don't lose out on by gimping.
I'm pretty sure that her hafu skills aren't tied exclusively to her main weapon, so AoE collabs are preferable. Maximize the # of hits you're generating to keep the healing coming in & the DPS buff topped up. Also she's pretty fuckin' set for full frontal assault so things like Dragon Fire are just overkill IMO; guard every other angle.
She doesn't really need healing items so long as your consistently crit-ing. That said a Full Meal might be worthwhile, since it doesn't need upgraded. Her healing's consistency but very gradual & chip-based compared to some other healers, so doubling it makes her runs a lot comfier.
I'd say Full Meal's good enough that you can safely pass on all defensive items but I guess there's her 3rd skill to consider. The "knockback enemies & heal every 1/5 hits taken" one. I don't think it's enough to build around, but if you're down to the wire with 0 rerolls, one slot free and only bodypillow/breastplate/etc. show up, sure it's not a wasted investment.
Since we're specifically talking Endless I'm obligated to recommend Study Glasses, Kaela's goggles & (with a disclaimer) Halu. They're must-haves in all my Endless runs, & reap the most benefit the earlier you get them. That said Irys specifically has a harder time with Halu until she has her Awakened weapon, so that one can be held off on.
Regarding Stamps (besides Greed & Botan's Crit-Up), IDK multiple builds are viable. My default go-to is always Haste/Size/Projectile but Size doesn't actually work on her and Projectile's pretty redundant, since her maxed weapon already probably has the most individual projectiles per volley. That, of course, also means it has the most HITS per volley, so hit-based stamps like Weaken/Slow/Bomb (ESPECIALLY Bomb) are pretty mental. Again it's a matter of calculating for overkill and what'd be most efficient.