Are there any legendary heroes that fut the bill (dealing damage to all + cleansing all allies), other than Zimkitha?
Yunan costume and DoT
Rian comes to mind
Snow White and Lady Loki come to mind too
Looking at @VeryQuietly 's awesome hero graphics
It looks like Bertilla, costume Yunan, Milena, Rian, Guardian Kong, Snow White & costume Snow White, Rumpelstiltskin, Lady Loki. Yunan without costume only cleanses himself but otherwise makes the list.
You only asked about 5*, but for completion there aren’t any 4* or 3* shown on both the relevant graphics.
milena, she can do anything cleanse, debuff, aoe, heal
Yes, Yunan Costume also fits the bill but he’s slow & by the time he fires, the DoT may have killed or weakened heroes in the team.
Zimkitha seems to be the best, till this point in time
Again, Bertilla, Yunan C, Snow White plain & C are all slow to be really effective in a raid defence team
Rian - once you have both stacks at level 10, fits the bill
Milena - at mana charge 1, does the job perfectly but again in defence, we cannot control when she fires.
Guardian Kong - at average speed, is the next best hero (Zimkitha being #1 @ fast speed)
red:
zim, kong, lady loki
blue:
snow white and costume, Rumpelstiltskin, Rian, Milena, lord loki (potentially), glenda (almost)
green:
yunan costume, lady locke (almost), francine and costume (almost)
yellow:
Roc
purple:
no one?
that’s what i remember. most other cleansers are healers