Adding skillchains in game...

[Ogulbuk]

BUT, some players don't want to play tanka nd healers because it is BORING...

Those people have not played either role for long enough then. Tanking is the single most active job in this game, for all I seen so far. The tank is basically orchestrating the entire battle ground, moving foes, all while constantly monitoring the battle ground for any ads (unless they have memorized the map so well that they know where and if there are adds)

Healer is the second hardest job in a party, and in some scenarios it can jump to be harder than tanking.

Anyone that is avoiding the job because "it is boring" really should give the roles a chance (but they will very likely grow extremely frustrated very very fast.)