can these types of abilities be used multiple times or are they limited to single use due to being while active abilities?
"While Venom is active, you may pay mask to give your Sidekicks +1A or +1D until end of turn."
"Synergy - While Barry Allen is active, you may pay boltfist to give a Barry Allen character die +2A and +4D (until end of turn). (Synergy abilities can be used while the character is active, any time you could use a Global Ability.)"