i found this link to be useful but reason i linked is because it has wish in there, ill cut and paste it below the link
http://www.freewebs.com/dominions2/spells.html
Wish : a few keywords are acceptable for the computer. All wishes can be repeated. This is a (probably incomplete) list:
"Armageddon" : earthquakes and meteors kill 20% of the population and of the units in most provinces of the world.
"Army" : gives you 300 militiamen.
"Artifact" gives you a random unique artifact. This is pretty funny if that artifact exists, whoever has it gets a message that it disappears into a poof of smoke and your mage suddenly has it! If the item is cursed, the mage cannot remove it.
"(Artifact)" : gives you the said artifact... including those which aren't listed in the magical item manual or in the forge lists : Vial of Frozen Tears (+1 D,W), Sun Sword/Shield/Armor/Helmet (of Solaris - mostly awe, berserk, and magic resistance), Hammer of the Cyclops (50% forge, 37 damage), Precious (attack and strength bonus), Greenstone Armor (prot 17), Robe of the Sorceress (+1 S,D,N,B and prot 15), Crown of Karafagus (+1D and 1 mummy/t), Admiral's Sword (curses those it touches).
"Blood slaves" : you get 250.
"Broth" : same as "food"
"(Creature Name)" : you get the said creature. Like "hero", they lose all magic. However, if you can cast Gift of Reason, they still have secondary powers, so Arco Priestesses have heal, etc.
"Death" : guess what happens to the mage...
"Death Match" : a Death Match is scheduled next turn.
"Defence" : same as "power"
"Dominion" : your dominion increases slightly.
"Experience" : the caster gets 1000 experience.
"Fame" : same as "experience".
"Food" : you get a 2 Cauldrons of Broth and 5 Endless Bags of Wine.
"Gems" : gives 25 of each gem type, including astral (that's 175 gems for the price of 100 astral), but no slaves.
"Gold" : gives you 3000 gold pieces.
"Hero" you get a random hero from any race. The hero shows up as a normal unit, but loses his magic skills since he is not a commander (if you cast gift of reason on him, he still has no spells available). You cannot ask for a specific hero however.
"Magic power" : the caster gets +1 to all magic levels, up to 10.
"No starve" : same as "food"
"Population" : brings more pop (+20%) in a random province you control.
"Power" : the caster gets +20 strength, +10 attack, +10 defence, +10 precision, and +50 hitpoints.
"(Pretender name)" : you get that pretender, with default magic and abilities (Daughter of the Land gets gems, Moloch gets imp, Ghost King gets ghosts, etc).
"Provinces" : a couple of provinces just convert to be yours.
"Strength" : same as "power"
"Supply" : same as "food"
"Troops" : same as "army"
"Weapons" : get a random weapon artifact.