Does Master Yi Meditative get +4 might when you have '8 or more' runes or '9 or more runes'?

Ruling: The notation '8+' means '8 or more', not '9 or more'. Master Yi Meditative gets +4 might when you have 8 or more runes.

Nuances:

• This follows standard English interpretation where '8+' includes 8 and all values higher than it
• The notation '9+' would be used if the intent was '9 or more'
• This interpretation is consistent with similar notation in Magic: The Gathering, where 'N+' means 'N or more'