Walkthroughs for custom maps.

Could you specify which one?

The author intended to use quicksand again, but since the crystals are faster than the wizards, the tactic from the previous battle wouldn't work. A modernization of the battle was needed. Instead of figuring out how to implement it, I simply used wizards and phoenixes. In the first round, I blocked the liches and put the wizards under fire. In the second round, I summoned a clone. The damage from the wizards was enough to defeat the liches in a few rounds until all the phoenixes died. Then came the quicksand, resurrection of the phoenixes, and finishing off the crystals. As for artifacts, I had to equip the lightning amulet and the medallion (forgetfulness). It's a rather simple tactic, but it worked.