It's the planning phase. You have unlimited resources on your heroes. You have 0 threat. All the cards in your deck are in your hand. You are playing the Shadow and Flame scenario.

The only encounter card in play is Durin's Bane (3 Def, 27 HP), in the staging area, with full health.

Give Balin his revenge by dealing 27 (or more) damage to Durin's Bane before the end of this planning phase.

Notes on your solution:

Please use http://www.rot13.com/ to disguise your answer before posting a solution. Questions and clarifying comments do not need to be encoded. Your solution should not depend on luck. It should work even if I hand-pick the result of any random element to intentionally thwart your solution. I expect a lot of responses. So I plan to only reply to solutions that are 100% correct. If you do not get a reply from me, it's likely you missed something.

Rule reminders:

A ready character cannot be readied.

Player card effects (like Herugrim) are calculated at the time they're triggered, and are not continuously updated.

Hint:

If you got the answer quickly, you definitely missed a step!

Difficulty (7/10)

Edit: I mistakenly added 2 Dwarven Tombs in here when there should only be 1. Since this is my mistake, you will still get 100% completion if you use both. It's still just as tricky.