Give me siege tips

[NTJedi]

When sieging the castle... for a quick attack on the place use the earth spell called "crumble". This spell will most likely let you storm next turn if your army is even moderate in size.

When you attack have all your fast troops in the front. I'm talking your calvary and other units moving 16+ for AP movement... otherwise you'll be stuck fighting in the bottleneck of the place which means big losses.

Finally the best suggestion when attacking AI opponents is bringing a powerful air mage with you to do mass flight on your troops. This spell is huge and can make a big difference in your favor.