Best Summoning Weapon? (Other Than Wand of Monster Summoning)

I am about to begin a solo archer playthrough, and im going to need something that can summon creature(s) to stall for a little while i pelt with arrows, i know of the Staffs of Air/Fire/Earth. But is there anything better? Something that would theoretically stall longer?
Thanks.
Thanks.
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Of course, I might be wrong about some details, like time of summoning, but still, I think the weapon could be interesting if used properly.
Also i guess i could just carry around like 5 different summoning weapons and use them all,...lol
-Horn that summons the warrior for 60 sec
-Stronghold animal summon (was it the moon dog or golden lion?)
-Ring that lets you summon a effeeti (cant steal it from the djnni? kill him instead)
-3 staves of elemental summoning (fire, wind, earth)
-Ras+2
-Spectral Brand
Your problem now is not the limit number of summons, but rather the inventory space dedicated to these items.
i went wis int instead of wis for my solo sorceress...
Staff of the Woodlands +4 can summon Shambling Mounds.
And for mages/bards:
Golem Manual can summon various types of golems depending on what pages are given to Cespenar.
Kinda wish rangers had animal companions in this game (but not as overpowered as Minsc's)