Cool stunts you've seen

[Rhenny]

In my campaign last week (4e), the party was in a large room (final battle) against a bunch of skeletons, a headless regenerating zombie, a deathlock wight, an monk acolyte...all the while, another monk (the master) was inside a rune circle protected by a force wall performing a ritual to call forth "The Harbinger of Orcus" (sounds like trouble). The party realized that a gem on a pedestal in the middle of a lava pool was corrupting the monks and projecting the force shield.

The Dragonborn Battle Cleric used his turn to run past a number of foes (avoiding AoO from no less than 3 foes), jump over the lava and land on the pedestal. The monk acolyte tried to do the same to bull rush the cleric and push him into the lava, but the acolyte failed his rolls and bounced off the cleric, into the lava himself. A skeleton warrior tried the same maneuver, also failing. As the two foes burned in the lava, the Battle Cleric raised his long sword, "Split the Sky" and shattered the gem. A truly heroic moment that turned the battle in the party's favor.

 

[Trit One-Ear]

This is a story from a while ago, but a classic in our group. Two trolls were chasing the party down a tight 10 ft corridor, back towards the entrance to a dungeon. Hopelessly outmatched, the heroes had no hope but to run for it. The mage thought he'd slow the trolls down by polymorphing one. He spun around, cast the spell, and when the DM asked him what he was morphing the troll into... he froze. He couldn't think of what animal would also slow the second troll. The DM gave him 5 seconds to decide and he blurted out "A blue whale!"
...

After a little research and quick calculations, the DM decided that if a troll suddenly became a 120 ton whale in a 10ft corridor, it would essentially be a "blubber bomb." The whale exploded outwards, killing both the whale-troll and his compatriot, while sending the heroes flying down the hallway into the room they had come from. Several landed in the lava river in the past room, while other splatted on the wall behind it. Almost a TPK, but memorable.