Take a Great Serpent a Pretender (it's NOT an optimal choice in MP bar in some cases, it was once a go-to pick but some things have changed)
wait not this guy
A snek murderfucks indies and even the AI has problems in dealing with it outside the box. Take it Awake, get like Dominion 6 Earth4 Water 3 Prod3 Misf 1 for a small reinvig bless (if you don't want to delve too deep into bless strategies now) for MA Ulm or the like
You need Prod for the armours, if you want another nation take Order or Growth instead
WAIT I FORGOT ULM HAS MUNDANE RESEARCHER YOU CAN DUMP MAGIC TO GAIN FREE POINTS
Whatever, details
This is not an optimal build in any way, it's simply a
fuck around build for SP
Remember that the AI starts wars
almost randomly, it weirdly considers PD a strong incentive to attack/not attack you, so the strategy of "PD Dumping", wasting 400+ G on the Province Defense (you know what province defense is, right? it's that small number you can click on on the province overlay, it lets you recruit local defense that acts as , well, local defense and it regenerates freely)
While your Giant Snek goes on a rampage on the easier indies (set him behind and let him chew their faces off for now) you need a basic research goal
Alteration 2
You need Quicken Self for your snek, so he can chew faces faster, and Stoneskin, so he gets even more tanky. He regenerates, so he can eat a hit or two, but now he's essentially unkillable by indies and the vast majority of even midgame AI human/elf/ogre armies
Giants may be a problem
if they took a adequate bless. Massed Barbs and Knights should be avoided because massive impact damage, bring an army to fuck with 'em
He also works underwater if needed, in that case you want to script Ice Shield too (it's a spell that works just UW, some are weird like that). With a fully functional nuclear option at your disposal you can play with battalions and get the feel of it, or merely fuck around
Morale, particularly at the beginning, is important, don't let the maluses stack
Remember that long weapons have "repel" attributes, a pikeman block can inconvenience inferior troops quite a lot
Try then to experiment with Evocation spells (for blowing shit up) , check what your mages can cast and go to town
Remember that this is a basic fuck around guide to let you murderrape the AI, it won't work on MP