The Elite Blue Guard is one of the two third-level guards you can get; the other one is Elite Red Guard. It can be bought from Blue HQ. It's described as "A Blue Guard reserved for the most dedicated Blue Beekeepers."
It grants the following abilities:
- +50,000 Container Space
- +15% Blue Pollen
- +7% Damage Reduction
- +10% Instant Conversion
- Before the 11/25 update, it costed 8,000,000 Honey and no Blue Extracts, Blueberries, Royal Jellies, or Moon Charms.