I think the problem is spells like Glibness, Strength, and Speed specify that they affect every check for the rest of the turn.
Are they then able to be played at all during the timing window of playing a card to assist with a check...like Aid, or Guidance?
Should they be their own category of spell that must be played proactively prior to an encounter or a check?
Or should they be allowed to be either proactive or reactive?
If they can be played reactively then the timing of when a spell recharge is performed matters. If they are only proactive then recharge timing, for these spell effects at least, is a non-issue.