Summon ashes Big rats

[Evil Eggy]

When i start summoning 3 giants rats they always spawns near boss like really near boss and other ashes summoning have no problem

[Artek [General]]

Consider reading item descriptions from time to time.

"Ashen remains in which spirits yet dwell.
Use to summon the spirits of three giant rats.

Spirits that do not require FP to summon.
The rat spirits appear at a distance from the summoner, swarming upon their victim to start the fight.
Even as spirits, these vermin seem to multiply endlessly. Enhancing these ashes can increase their numbers."

[Robodemon]

Item descriptions in Elden Ring don't always tell you all the details, except for when they do.