Sniper with Detonator Active nuke and broken tile-repairing.

A-

+Active that can scale on multi target bosses

+Broken Tile Cleansing is pretty neat

-Equipment is extremely conditional on mob clearing (and is often irrelevant)

For those who don't know, Allura's active allows the tile you target takes both the 200% base and the 200% DEF-ignoring damage separately, which gave her excellent DPR against single-tile enemies. Which makes her active pretty decent for ST scenarios in addition to multi-tile.

Without a Detonator chain, Allura is still firmly in Sniper territory, but she is a fantastic partner for a Detonator main DPS, especially for mixed single-tile, multi-tile maps, in addition to full single-tile enemy maps. Very useful on pure versatility, though definitely outshone by many Water units.