Doubles down the donor rewards.

Double Down Donor rank
Sync Double Down Donor
1x Legendary of Choice (One Time)
10x Inventory Vault (One Time)
1x T1 Morph Crate Key (Monthly)
1x 3000 Pixelmon-Points (Monthly)
1x 4000 Poké-Dollars (Monthly)
1x 25000 Claimblocks (Monthly)
1x 10000 Building Block Points (Monthly)
1x Bottle Crate Key (Weekly)
10x Vote Crate Keys (Weekly)
1x Random Shiny (Weekly)
1x Master Ball (Weekly)
20x Poké Balls (Daily)
20x Rare Candy (Daily)