Let´s take Valigarmanda Ex for example.
Why does everyone use those confusing terms(this makes a mess in a lot of groups because everyone is using the terms different with being different methods/guides out there) instead of just saying "you pairstack with healer 1", "you with healer 2", "you with tank 1" and "you with tank 2" to the 4 dps...
And how does it matter if m1 or r1 pairstacks with h1?
Or m1/r1 with mt?
