Only castable in water... thats a cool idea...

Though I wouldn'd mind being able to get to my favorit island easier... I think it should be 1mp los per (magic level here) minute(s).

Also, water currents would be fun... tides are also possible, as the waterheight is an editable variable... though that could get laggy (I've experimented with this a bit offline... its pretty fun)

I think it should drain a bit faster, but that remains to be seen. I mean to block the seaway west from Bomboria, as ships tend to get stuck if there's something on the water, alternatively a kingdom's shipyard.

The entire magic system needs to be faster. Every aspect of the magic system in GK is wayyy too slow... Magic Bullet for example... isn't it supposed to be a Magic BULLET? But instead, it moves like a magic beach ball... Also, mana/sp regen is too slow. There is absolutely no way a spellcaster can complete a map without carrying mana crystals on them... and spell casting itself... the time it takes to throw a wussy bullet is too long... some spells need a dramatic speed up... but not all... duration benefitical spells can still keep its slow cast time...

But on the topic of New spells...
Perhaps a revival of a spell from the old days... Flame Spiral
Or a fresh idea... Energy Field... 1sp... can be cast very quickly with almost no delay... deals 2+MagicLev/4 damage to everything near you...

Maybe there could be something like a speed-variable scripted into spellcasting, even though I don't know whether ganis can be sped up via script. If there was such a var, magic+ could be used to increase it.
As for maps, I use earth elemental which does a pretty good job at a compared low use of mana, and I havn't used a crystal in a while.
Hm... some kind of magical discharge would be nice, pushing enemies away depending on the player's strength...

oooooo magical discharge, i want that, it would be usefull for getting wolfs away, but it should activate instantly, cause who is gonna use it if it takes 30 secends to take effect?

also about the rowboats, if you drive on one with a ship it should rapidly lose HP (not your mana) cause have you ever heard of a rowboat blocking a big ship? of corse if the ships are faster then the rowboats then we might have a serious player killing problum:
"ahoy mr rowboat *SMASH!* bye little P-Mode wizzard, mwahahahaa"
you get my point, but it wouldn't get killed that fast, rowboats should lose HP 3 times as fast as ships, so that way people have a chance of living a collision, also someone might accedently hit a rowboat guy (cause rowboats don't appear on the map) and if it "was" instant then the innocent person is all of a sudden a PKer, not a good situation, oh and rowboats can fit into smaller places, making them more usefull, and also, who would build a ship just to get 30 plat from their house? no one that i know of.

edit: i just sold some icecubes, i didn't get anything, and i'm sure thay had stuff in them x_x

You can also get the insides if you stack them and are lucky, maybe you actually got what was inside when you picked them up in the first place...

maby, tough that would be very weird considering i got the icecube O.o whatever, oooo spell ideas:

Cloak: You cloak into your surroundings, if your perfectly still then noone will know your there, but if you move even a pixle, then people see basicly perfectly clear water in the shape of a human moving about, also, when this is in effect you gotta get real close to enemys in order for them to see you, but if you stand in one spot thay wont see you at all, this spell only works for so long, and using ANY other magic will end the effect (i want this spell, but after levitaion ^_^)

Make Candy: it's like create food, only it's for wizzards, and it makes candy, candy adds 0 to 5 food at most, but gives stat boosts, whenever you use this spell a random candy is made, there are less candys as you grow levels, at first every candy only does like +1 of a single stat, but then thay start doing more things, the final candys give +5 to all stats (exept for resistances, wich it gives +30% to), ok so i sounds a bit overpowered, but still, it's a good concept, i think...

heres one:poison food
poison eatable items, it doesnt put of poison on its name, so someone can put that food on the ground, a **** comes and eats it, gets sick and dies, LOL
another one:depoison food
makes the food not poisonous at all, so if you use it on a food that was poisoned or with worm of poisoning and food of poison and etc, it wont be poisoned any longer, and the name of the worm will only be worm, thats all