Summon is a great spell. It gets useful NPCs to you for equipment, to use as charmies, to get some characters to you quickly, or to help newbies and many other such nice things.
1 - Summon also helps with one noble enterprise; Thinning down your enemies, when they go on huge hunts, five of them or more to bring down three or less persons.
2 - Summon also helps with a despicable sort of task; Going somewhere you know your enemy to be, and without having to risk your footsteps being heard, without having to waste any potions or magic to somehow conceal yourself, and without having to face more than one person, you just summon. And bash/taun/trip away.
Yes, sometimes, some class/cabal combinations will have more chances to cope well against being summoned and get away, or even win the fight! Not that the summoning group cannot just as easily include a mage who will dispel whatever magical aids the target already has on him.
But what happens in general, is really simple. The summoner group can easily send an irrelevant person as a scout, who will not even get involved but otherwise co-ordinate everything as needed. There is little margin for error.
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How often does number 1 happen? One, perhaps two times out of ten? More? Doubtful? Less? Probably. Where is the point in summon killing? Who has ever truly considered this "tactic" anything but the best way to avoid all of the difficulties of PK? Approaching your target unseen. Avoiding potential difficulties or enemies on the way. Facing not just one target, but whoever might be about and may intervene, ally or not. In effect, everything that makes PK interesting and a challenge.
Gate is the greatest, and most fun unorthodox tactic of PK I've ever experienced. It can be very rewarding but is also -highly- risky. It can be used as bait, or a distraction. It -will-, if successful bypass roughly half of the difficulties I mentioned above. But the inherent risk to it, the danger of not knowing what lies the other way, or even if your scout is there and you do know what awaits, is not the same. You do not isolate the person in question. You do not single-handedly alter his surroundings. You are the one charging in. And you have to be good at it, and good at being able to react in case something does not go as planned.
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To conclude, I think summon is a fine spell. I think it's great to be used on NPCs and willing PCs.
But I would think this MUD would be so much better off without the use I described above. The classic summon/kill. I am, at the moment, seeing it as a negative part of PK. Please share your opinion with me, whatever it may be. Thanks in advance.