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Damage dealers are suited for this task because it doesn’t affect the integrity/stability of the cheap neverwinter diamonds group while in combat and only slows down DPS. In case you have a Trickster Rogue in your group, it should be the only one that resurrects teammates.
Some may ask: Why?
There are several reasons. First would be that a TR doesn’t generate any kind of threat. Even if it’s so small the mobs will ignore him anyway. He can also simply go into stealth to shake them off. “Impossible To Catch” is another neat emergency helper. Next to a huge damage resistance buff the immunity to control effects comes in very handy if a player is neverwinter astral diamonds guides lying close to mobs that use AoE’s that can interrupt players.

LOW BURST, HIGH SUSTAINED DAMAGE
Another reason is one of astral diamonds power leveling its weaknesses. From all the damage dealers in the game the class potentially deals the lowest burst damage, which means the loss of damage while he is resurrecting someone is not that great of a deal. That doesn’t mean it is has bad damage at all, but the Trickster Rogue often uses Damage Over Time Effects. In high-end parties and short fights, it makes the class less effective. Some stacks and Executioner Capstone simply need time to build. On the other hand the TR can sustain DPS a lot better over time, in example while resurrecting.
That's also why the class is more suited for (Click buy neverwinter astral diamonds) fights that take longer, like bosses. This is where the Trickster Rogue can shine the most.