OOC: it deflects things, i said that in that post

OOC: What post?
And the way you're using the spells doesn't seem very rational.

ooc: The one that says: Protego, matt said, using the deflective spell on the acid.
Bold is what the spell does. What do you mean by rational

OOC: That wasn't there before.
And learn to use proper grammar.

The Grotesquery stopped where it was. This opponent didn't seem to be putting up much of a fight. He hadn't even so much as attacked him yet. The Grotesquery wouldn't be satisfied it its prey didn't put up a fight.

Casts a spell trying to stun the opponent. "This better work" Matt said

OOC: This is how it should be. Pay attention to the differences. They will be in bold.

Matt casts a spell, trying to stun his opponent. "This better work." Matt said.
1. Speak in third person.
2. Put commas where they belong.
3. Put a period at the end of each sentence.
4. Again, put a period at the end of each sentence.

The spell hit the Grotesquery like a fist. He lost all sense of coordination and couldn't even take a step without tripping over. When he finally recovered his wits, he stood up and charged right for Matt.

Matt, realising him charging, stepped out of the way.

OOC: Much better. However, it should have said. ", realizing that he was charging,".
Make the posts more detailed.

The Grotesquery turned on his heel and brought his right hand around toward Matt's head in a mighty backfist.

Matt ducked just in time to dodge the swipe. He conjured a spell to try and push him back.

OOC: You, my friend, are learning quite nicely. Keep up the good work. My only suggestion is for you to make the posts longer. It makes things more interesting.

The Grotesquery was angry. He started toward Matt once again and raised both of his fists over his head, bringing them down in a powerful slam. It sent a shockwave directly at Matt.

"Expaliarmus, the reversing charm." Matt said. the spell caused Matt and the opponent to swap places, so the shockwaves were going to the opponent.

OOC: Aaaaannnd there it goes again.
There are multiple errors in this post.
Put a period after "charm".
Capitalize the M in "Matt".
Put a period at the end of the sentence, after "opponent".

The Grotesquery had absolutely no idea as to what just happened, but his shock waves were headed at him for some reason. He slammed the ground again, creating another wave. The two collided and canceled each other out.

(The ground begins to shake. Multiple chasms open up in the arena as it changes.)

Matt, realising what happened, conjured a suprise spell. "Incendio, the flame charm." Matt said, tying to cause a slight burn on the opponent.

The bandages on the Grotesquery (Yes, there are bandages) immediately lit. It merely glanced down at them, uninterested. An instant later, they went out. The Grotesquery used its teleportation move and appeared behind Matt, ejecting another stream of noxious acid.

Matt made the ground turn into ice with the spell glacius. And he slid away from the noxious acid of the Grotesquery. " You my friend, need a shower. aqua eructo, the water charm." Said Matt.