It can be done at instant speed as well, meaning you'd be able to use its effect before your turn to get to use it twice
Lets imagine for a moment that the market becomes flooded with really good counterfeits
Those amounts are then doubled to 4 and 6, respectively
As for new events coming with the update, don't expect anything too new in June
Both 112 Registeel Metal 110 Metal Claw (90) Dialga 113 Shieldon Metal 100 Headbutt (50) Palkia 114 Bastiodon Metal 160 Headbang (80) Guarded Grill (Ability) If any damage is done to this Pokmon by attacks, flip a coin
If you really and truly want to stop your opponent from casting creature spells for a single turn (which is all that Aether Storm will last), you could look at Cease-Fire, Orims Chant, Silence, Brand of Ill Omen, or Ward of Bones