1) Playable Exiled Cards - if cards in exile are available to be played but only for a limited time (i.e this turn or next), have auto-tapper prioritize mana usage to make it most possible to play the remaining exiled cards, not cards in hand.

2) Creature Lands - if a land is temporarily a creature (from any effect), it should be lowest priority to tap i.e only if required to cast the spell; in fact, it should also come with a prompt. If a land is permanently a creature, treat it like a mana dork (I believe lower priority than a non-creature land?).

3) Virtue of Strength - currently it is clear the auto-tappper prioritizes mana efficiency and thus when Virtue of Strength is in play, it will tap utility lands and dorks before basic lands since the basic lands most likely produce 'too much' mana. This is not good! If a player manages to get this enchantment in to play it is certainly to abuse the basic land mana, and mana efficiency is far less their concern (and if it still is, they can manually tap).