While I don't think it's an awful thing for AST to use a card for their own benefit if necessary, suggestions like "oh, just depend on RNG granting you a Spear when you want to use LA, then blow it on yourself to witness how simple mana management is" should be made by no one, ever.
The use of Spear and Ewer on one's self should be a strategy for carrying an abnormally heavy healing load, not a behavior expected to maintain basic function as some suggest.
