This guide is about how to speedrun Wizard on classic mode. I will update it with void and hell later. Play on normal with second class bonus. You're not allowed to use anything else than 100 gold as starting bonus so take that. Your main source of damage is energy golem, it deals damage to all enemies and scales nicely through magic cards played. However it doesn't benefit from strength or double damage so you won't be needing that. Instead focus on finding elder fairy to increase your magic counter. You will want to remove 4 base cards (the 4 golem warriors aren't necessary) to be able to cycle energy golem. Once you've done that use all your gold on buying and duplicating elder fairy, you can get around 5 or 6 of them by the end and it's enough to one turn kill most enemies. Just play all the elder fairy and then the mana on energy golem. In order to remove 4 base cards you have to get at least 2 other cards. If you already found elder fairy then duplicate it and you're fine. Otherwise, some exile cards are worth taking early as battle pickups: -old jester, young witch, snow queen, guardian of the sigil, sigil essence. Do not take any non exile cards, if you do you will need to remove a 5th card, which costs 250 gold and is almost the cost of an elder fairy duplication. Do not take moon fairy or high priest either, the selection screen will slow you down too much. In first 2 worlds, you can just attack the enemies without paying attention to defense. You should stay alive until the final boss and you fully heal after that. Past that you will need circular shield so it's your priority skill. The other skills you want are:

• mana skills : demon eye, necronomicon, key of the portal, telescope
• gold ingot (for an elder fairy duplication)
• phantom spear (decent additional damage)
• defense before circular shield : invi potion, ice block, frost nova And specially for final boss, you can get :
• tear of goddess, rabbit paw, mana battery As usual in speedrun, spend as little time as possible choosing cards and pickups. In markets, just look if elder fairy is available, look at skills quickly then remove cards and duplicate. You can reroll until you find your first elder fairy, then stop rerolling. Taking 100 for 4 gems is good too, specially if you get elder fairy in first market. Once you have an elder fairy, a 4 card deck and circular shield, maybe a mana skill you can just check if you have 300 gold to duplicate, otherwise leave the market immediately.

This strategy won't work as well in hell because your damage doesn't scale very fast past a certain point.