Ok, so I'm going to try and get creative; both to set Theo up if he decides to use his daily and to try and get into the middle of combat to draw attention off of him. Basically, I'm doing a running wall jump, Prince of Persia-style, which I imagine takes both Athletics and Acrobatics.
Athletics: 1d20(18)+8=26 (http://invisiblecastle.com/roller/view/4593015/)
Acrobatics: 1d20(13)+9=22 (http://invisiblecastle.com/roller/view/4593015/)
I have no idea if that succeeds or not. If it does, here's my planned movement from my current square: L8{origin}-->K8->J9->K10->K11-->
J13{landing square}.
As for my Standard action, I'll use Dual Strike to tag Bun(I12) and Gsurb(K12).
Attack 1: 1d20(5)+7=12 (http://invisiblecastle.com/roller/view/4593001/)
Damage 1 (Pretty sure it's a miss, though): 1d6(3)+2=5 (http://invisiblecastle.com/roller/view/4593001/) damage
Attack 2: 1d20(14)+7=21 (http://invisiblecastle.com/roller/view/4593001/)
Damage 2: 1d6(2)+2=4 (http://invisiblecastle.com/roller/view/4593001/) damage
Regardless of hit or miss, both are marked by me for a round. If either makes an attack against anyone but me or shifts, my Combat Challenge power triggers (could also be used on a normal Opportunity attack if needed):
Attack: 1d20(20)+7=27 (http://invisiblecastle.com/roller/view/4593026/)
Damage = 11 damage (maximum, due to critical hit)
It seems I can only crit on triggered attacks, which are always potentially wasted if they never trigger. :lmao