Kain's condensed Gestalt

This works slightly different from Paragon Multiclassing, but still takes the shell of it. Basically:

Level 11:

Choose a second class. You gain a basic Multiclass feat of this class (even if you do not meet the requirements for the feat), which does not count against your multiclass limit. If you choose a class in which you already have a multiclass feat, you may instead gain a bonus feat. All powers that belong to your chosen class may use an attribute of your choice, instead of their base attribute.

You also may TRADE out one At-Will power for another At-Will Power from your multiclass.

You gain an encounter power of level 7 or lower from your multiclass.

Special ruling, tentative: If your feats, class features, equipment or paragon path features reference your power source (divine, primal, etc) or your base class (barbarian, etc), you may treat your multiclass powers as being from that power source or class as long as you meet the other requirements for the ability in question.

Level 12:

You gain a level 10 or lower Utility power from your multiclass.

Level 20:

You gain a level 19 or lower daily power from your multiclass.