Fascinate

Fascinate (Sp)

A bard with 3 or more ranks in a Perform skill can use his music or poetics to cause one or more creatures to become fascinated with him. Each creature to be fascinated must be within 90 feet, able to see and hear the bard, and able to pay attention to him. The bard must also be able to see the creature. The distraction of a nearby combat or other dangers prevents the ability from working. For every three levels a bard attains beyond 1st, he can target one additional creature with a single use of this ability.

To use the ability, a bard makes a Perform check. His check result is the DC for each affected creature’s Will save against the effect. If a creature’s saving throw succeeds, the bard cannot attempt to fascinate that creature again for 24 hours. If its saving throw fails, the creature sits quietly and listens to the song, taking no other actions, for as long as the bard continues to play and concentrate (up to a maximum of 1 round per bard level). While fascinated, a target takes a -4 penalty on skill checks made as reactions, such as Listen and Spot checks. Any potential threat requires the bard to make another Perform check and allows the creature a new saving throw against a DC equal to the new Perform check result.

Any obvious threat, such as someone drawing a weapon, casting a spell, or aiming a ranged weapon at the target, automatically breaks the effect. Fascinate is an enchantment (compulsion), mind-affecting ability.

Info Specific to DDO
In DDO, fascinate does take some time to cast, however, leading to some complaints that by the time it is finished all the enemies are already dead. Good team communication is important here.

You must have a mob targetted to use this ability, but the effect is AE. At 3rd level I've fascinated 4 or 5 kobolds and a wolf with one use of this ability. I didn't think animals would be affected, but the wolf was. Spiders aren't affected as one would expect given that they are vermin (which are normally immune to mind affecting abilities).

So far I've never been interrupted while using this ability.