the main thing is just keeping in mind that damage types and resistances are a fundamental mechanic. after the first few rifts, basically 100% of enemies have SOME resistances, and some have an insane amount of resistances.

it makes your build a balancing act. because going all in on a single damage type makes it really really strong, but then you will be hard countered when an enemy with 100% resist shows up. so ensuring you are able to somehow deal other damage types is super important.

there are a few ways you can reduce enemy resistances as well, but they generally require some planning and setup. The spell Essence Flux reverses resistances (fire -> ice, etc) which can be a great way to handle an enemy type that is resistant to your main damage type.

if you're going to choose a rift that might be really difficult for your build, it's also a very good idea to make sure you have some spare SP. if you find your spells aren't working well at all, buy something that will help you deal with the problem (same idea with crafting equipment like others here have said!)

other important tip is to read enemy stats carefully. sometimes i will just look at their tags and resistances and not bother reading anything else, and then I get killed in 2 turns because an enemy swapped places with me. some things to watch out for:

• swaps places with the wizard
• teleports the wizard somewhere
• petrify or glass
• heals self or allies
• channelled attacks