I came up with a way of instantly killing almost any enemy using the above two powers. You need:
(1) A Shaman with the Eagle Summons the Fire ability from the Keen Eagle paragon path.
(2) A Rogue with the Garrote Grip power.
(3) Some way of signaling over long distances.
The procedure goes as follows:
(1) Hire a whole bunch of civilians (several dozen at least), hand them each a bow and arrows. It doesn't matter how horrible they are at attacking (in fact it works better the lower their attack bonus is.) Have them stay in town while you go out adventuring.
(2) When you encounter the BBEG, have the Rogue Garrote Grip him, then have the Shaman summon his spirit companion adjacent to the rogue. Now the Rogue is a legal target for all your allies' attacks, and any attacks that miss the Rogue hit the BBEG.
(3) Signal the civilians back at town to let loose, targeting the Rogue. They can do this because of ESTF. They'll be at -7 or -12 to attack (-5 for total concealment since they won't be able to see you, -2 for long range, and possible -5 additional if you're inside a dungeon or building so the line is blocked.) Assuming their attack bonus is low enough, they'll only hit the Rogue on a natural 20, and everything else will miss, and get redirected to hit the BBEG. So the rogue will soak up a few hits, but the BBEG will soak up 19 times as many.
(1) A Shaman with the Eagle Summons the Fire ability from the Keen Eagle paragon path.
(2) A Rogue with the Garrote Grip power.
(3) Some way of signaling over long distances.
The procedure goes as follows:
(1) Hire a whole bunch of civilians (several dozen at least), hand them each a bow and arrows. It doesn't matter how horrible they are at attacking (in fact it works better the lower their attack bonus is.) Have them stay in town while you go out adventuring.
(2) When you encounter the BBEG, have the Rogue Garrote Grip him, then have the Shaman summon his spirit companion adjacent to the rogue. Now the Rogue is a legal target for all your allies' attacks, and any attacks that miss the Rogue hit the BBEG.
(3) Signal the civilians back at town to let loose, targeting the Rogue. They can do this because of ESTF. They'll be at -7 or -12 to attack (-5 for total concealment since they won't be able to see you, -2 for long range, and possible -5 additional if you're inside a dungeon or building so the line is blocked.) Assuming their attack bonus is low enough, they'll only hit the Rogue on a natural 20, and everything else will miss, and get redirected to hit the BBEG. So the rogue will soak up a few hits, but the BBEG will soak up 19 times as many.