Counter a weapon

[Zdrmonster Productions]

A hammer

 

[Jackson B. Humorus]

A flying enemy

 

[Zdrmonster Productions]

Throw it at you

 

[Jackson B. Humorus]

Pocket knife

 

[GoldGal64]

GIANT SWORD

 

[Jackson B. Humorus]

Gun. Never bring a sword to a gunfight!

 

[Fizzle]

Bulletproof shield, never go to a gun fight without one of these

 

[Jackson B. Humorus]

Sword cannon. Those totally exist I didn't make it up-

 

[GoldGal64]

giant cork to plug up the cannon

 

[Jackson B. Humorus]

Corkscrew

 

[GoldGal64]

Titanium cork

 

[Jackson B. Humorus]

Transmutating the titanium into cork

 

[Doktario Mystario]

a black hole

 

[Duchess Swan]

Finn the Human with a fourth-dimensional sword

 

[Jackson B. Humorus]

Turning off the television

 

[Mind Master]

A LIVING TV!

 

[Duchess Swan]

A Batarang that doubles as a tv remote

 

[Mind Master]

The Bat credit card to buy all the batarangs

 

[Jackson B. Humorus]

Pickpocketing

 

[Duchess Swan]

That magic barrier from Adventure Time that keeps everyone out who's a thief

 

[Mind Master]

Dispell magic spell

 

[Duchess Swan]

Nope card (Exploding Kittens)

 

[Mind Master]

Uno reverse card

 

[Dolly Dimply]

Flamethrower

 

[Duchess Swan]

The Ice King's crown