Is there a way to summon a mob at you ingame postion?

[KING_SOBB]

When i have a minigame in one of my games and i give a person a special item and wehen they right click it it summons a mob at there position
but idk how to? Can anyone help pls

 

[ImaLEAF]

game value -> locational values -> location

 

[KING_SOBB]

thx