any defencive cool down basically nullifys the buff.
DKs can AMS
Druids can barkskin
shammys can gorunding totem or ansestral walk, or just spam purge
preists can spam purge and pain supression
warlocks can use their buff -40% damage.
iwould say warriors can spell reflect but lets be fair that only works on 1 ability.
we’re living with 2 minute mages
EIther buff base damage or buff combustions so it’s a 1 min CD.
or buff standard DPS. scorch does less than 1% per health bar.