There should be sun spells to use specifically on minions, increasing their stats. Some may increase minions resistances, HP, damage, crit, starting with extra pips, more power pip chance etc.
Also, a new sun spell idea which makes the enhanced spell "invisible" when cast. This means the spells school symbol will not be played, and the spell will be cast directly (like some wand hits where the player is summoned to the centre of the duel circle). This will bypass any dispels or accuracy buffs/debuffs
