Is it possible? Golems have construct traits that make them immune to spells except for harmless ones, but they also have immunity to magic which doesn't allow any spell (with spell resistance) on them. So am I allowed to use Haste or Bull's strength on them? Or their immunity also applies to harmless spells?
As written, you are correct in noting that the golems are immune to spells that allow spell resistance, so most of your buffs for example would be wasted on them.
That said, in my campaign I would rule that it would be possible to alter the construction of a golem at creation time such that it lacks that spell immunity, allowing for the obvious new weakness but also allowing you to buff it.
Another option would be, again at creation time, to construct it with certain spell abilities built in, perhaps triggerable a number of times per day similar to wondrous items. So if you wanted your golem to be able to gain Haste effects, you would need to incorporate the Haste spell into the construction of the golem, with pricing appropriate to a x/day item of Haste. I would avoid allowing buffing it to be a permanent effect in most cases.
As a GM of course you can handle it however you like. Perhaps by adding a device which allows the controller of a golem to be able to cast self only buffs on their golem similar to how familiars work. But I would either make that a macguffin, possibly an artifact, with appropriate lore reasons as to why it is a one shot thing, or be aware that the group may wish to make use of it too.
As a player it will come down to adjudication by your GM.
Well, immunity to magic on most golem entries says they're immune to any spell that allows spell resistance and then usually gives some exceptions specific to that type of golem that weaken them in some capacity.
Since haste and bulls strength allow SR, then it would appear that indeed they cannot be used on a golem.
Also, construct traits does not include a general immunity to spells except harmless. There is no mention of that in the construct traits entry. However, they are immune to most of the effects of spells because of their various immunities they have to things like mind affecting and anything requiring a fortitude save unless it affects objects.
Thank you guys for your answers. I think my golem Rosie will have to fight on his own, without any haste help.
Use a spell called Scorching Ray; make a staff of it. Now build Rosie a new arm, housing the staff there, with the staff also affected by a Shrink Item spell. Now when you give the command, have Rosie flex his finger digits, pop out his arm-mounted laser cannon, and begin firing. Your players will thank you.
Use a spell called Scorching Ray; make a staff of it. Now build Rosie a new arm, housing the staff there, with the staff also affected by a Shrink Item spell. Now when you give the command, have Rosie flex his finger digits, pop out his arm-mounted laser cannon, and begin firing. Your players will thank you.
Awww, Rosie would love it but it can not use staves :D Btw, I gave my Imp, Bumblebee, a wand of Make Whole. He lays invisible on top of Rosie while healing it and commanding it. I have more important wizard stuff to do — looking at the others fighting for me while I tease enemies and summon backup for the team; I'm a conjurer, not a labourer.
There are some options in Ultimate Magic on Building and Modifying Constructs. Specifically, you can add armor enhancement bonuses and abilities, add weapons to the construct, and add effects that trigger when the construct is hit/takes damage (Rune-Carved). With the Bioconstruct (Brain) modification (to gain skill ranks in Use Magic Device), a construct could use spell trigger items (subject to its simple instructions or the commands of its owner/controller).
Well, immunity to magic on most golem entries says they're immune to any spell that allows spell resistance and then usually gives some exceptions specific to that type of golem that weaken them in some capacity.
Or repair them.
There are some options in Ultimate Magic on Building and Modifying Constructs. Specifically, you can add armor enhancement bonuses and abilities, add weapons to the construct, and add effects that trigger when the construct is hit/takes damage (Rune-Carved). With the Bioconstruct (Brain) modification (to gain skill ranks in Use Magic Device), a construct could use spell trigger items (subject to its simple instructions or the commands of its owner/controller).
I used a golem
manual to build it so no ultimate magic. But I will keep it in mind in the future.
You can buff with spells that have "spell resistance: no" and that do not conflict with the construct traits.
Some of them are Mage Armor, Protection from Evil, Magic Circle Against Evil.
Nice list - had no idea those didn't allow SR.
You can also grease Rosie if you're worried about her being grappled.