https://www.sageadvice.eu/2016/02/13/thunderwave-thundercube/

I believe there's a rule wholly against including your space within that 15ft cube, but I don't think you'd want to risk knocking yourself out either.

Either way, its no Arms of Hadar without risks. 

If you wish to discuss this further, best to take it to PMs include BDaddly. 

(I'm sorry this had to be you Nara. I really wanted to land that spell in this arena. Thank you for getting snacks!) 

"pplease come and get me before I go too far..and you owe me SO MANY DRINKS FOR THIS SWIGG."

(I most definitely will. I most certainly do.) 

Abubz takes a deep glare at the fish man in front of him. You... you killed Octy! Sleep! As he says so a burst of smoke erupts from 11 (exactly 11, or 11A, whichever’s allowed) effecting Abubz and Nimbus together. Go ahead, take a nap. 

Sleep effects:23 both me and Nimbus, respectively. This match, is over.

(Lol this match has been over. I contributed squat. Sorry team. :/ )

Amaruve sheds his beast form and Dispels the effect from Nara (from, M-12), moving about and trying to keep his location obscured

(Stealth: 9) 

(How can Amarvue both cast a spell (action), become human (BA), and hide?)

Nexus: (Round 4)

Nimbus lets out a wave of Thunder, echoed by the storm clouds overhead. Octy cannot withstand the attack, he goes quietly in his sleep. Abubz smacks against the wall dealing an additional 5 damage to the structure, but the thick stone walls still stand.  Crassus is pitched back into Fenla, but she keeps her feet under her. Baloo withstands the blow as well. Ironwood is able to avoid the strike by slyly falling back while you were incapacitated (and I wasn't updating the map since the match was essentially over.) The flaming sphere that stands in his former location is pitched back with Crassus and Fenla.

(Nimbus movement)

Arena 11: Nexus

  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P
16  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
 =..%==%..===============================..%==%..
15  =  . I.  ÷  _  _  _  =  _  _  _  ÷  .  .  =
 =..=........____________=____________........=..
14  .  .  .  .  _  _  _  =  _  _  _  .  .  .  .
 =÷÷_...........___=.....€.....=___..........._÷÷
13  _  .  .  .  .  =  . 1.  .  =  .  .  .  .  _
 =______...........=.....=.....=...........______
12  _  _  .  .  . *.CF.  = d.  .  .  .  . j_  _
 =_________.....=======..=..=======....._________
11  _  _  _ N. A=  ,  ,  =  ,  ,  =  .  _  _  _
 =________====..=,,,,,,,,=,,,,,,,,=..====________
10  _  _  .  . 5=  ,  ,  , f,  ,  =  . 1.  _  _
 =________......=,,,,,,,,=,,,,,,,,=......________
09  _  _  .  .  .  ,  ,  =  ,  ,  .  .  .  _  _
 =========€..=======,,===€===,,=======..€========
08  _  _  .  .  .  ,  ,  =  ,  ,  .  .  .  _  _
 =________......=,,,,,,,,=,,,,,,,,=......________
07  _  _  .  .  =  ,  ,  ,  ,  ,  =  .  .  _  _
 =________====..=,,,,,,,,=,,,,,,,,=..====________
06  _  _  _  .  =  ,  ,  =  ,  ,  =  .  _  _  _
 =_________.....=======..=..=======....._________
05  _  _  .  .  .  .  .  =  .  .  .  .  .  _  _
 =______...........=.....=.....=...........______
04  _  .  .  .  .  =  .  .  .  =  .  .  .  .  _
 =÷÷_...........___=.....€.....=___..........._÷÷
03  .  .  .  .  _  _  _  =  _  _  _  .  .  .  .
 =..=........____________=____________........=..
02  =  .  .  ÷  _  _  _  =  _  _  _  ÷  .  .  =
 =..%==%..===============================..%==%..
01  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
   A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P

Key: '=' High wall (8ft.), '_' Pit (20ft.), '÷' Ladder, '€' Tree, '.' Stone, ',' Grass, '%' Door, 'A-Z' Contestants

( I C F A vs. D F N J )

(Amaruve can not hide, he gains no benefit for being unseen. He is only able to keep his position unknown while he remains out of sight. As players sometimes do. I allow this if you begin your turn out of sight, and you do not make an attack or offensive spell during your turn.)

Wouldn't Crassus have to make a save for ending his turn next to the sphere? 

No, because I conjured it after his turn. 

(Yep game. I would bow to the over whelming enemies. Like 4 on 1? On top of trying to heal those who are down? No contest, because of the amount of actions you can take. Heal and run heal and run but for how long, until they unleash the brooms of death? Like great effort. But this is gonna get messy lol)

Whose turn is it?

(Where would Nimbus even move to? There's not anywhere he can get to where an enemy wouldn't be able to get to him.)

Quote from Keneux >>

Whose turn is it?

 (Nara is up in Labyrith)

(Nimbus has movement in Nexus, discussing in PM.)

Nimbus will vault over the wall to the right of him to confront Baloo.

Athletics Check: 18

(Good one)

As he vaults away, therefore moving out of Abubz’s reach, he swings his staff around to try and hit Nimbus in the shoulder. For Octy!

Attack: 22 Damage: 6

(@Goodbye: Didn't you cast sleep?)

(nevermind. Caught on.)