He didnt resummon it. You fight the golem boss in the lower left wing of the blackbird. Dalton didnt know that you fought and drove it away. So dalton was sucked into the portal (which is most likely a gate)
Impossible, that would mean he had the magical power to time travel that would make him REALLY powerful.
Not neccessarially. It could perhaps be that the fall of the golem created an unforseen temporal instability, forming a gate into which Dalton fell. Thus while the magic that formed the gate is inherently his, it is not a purposed effect, nor one that he would have control of.
However, I have always thought that the gate was rather the portal to and from wherever the golem is summoned from, or else a certain non-space from which things can formed. Whichever is the case, the defeat of the mighty golem served to create a sort of counter-summon where, rather than drawing a creature from that realm into this, it drew from this into that - the flow-force of the summon spell was effectively turned backward upon its master, reversing it. Wherever he went, I don't think he would have survived, though.
