Plarium have released the following pack in-game for free that you can claim during the next 3 days, giving us a ton of valuable resources:
- 10x Energy Refills
- 10x 50 Multi-Battles
- 10x Arena Refills
- 10x 3v3 Refills
All of these will come massively in handy while pushing towards the Summer Trial Events, which you can find more details about here.