Isi's Silver Hourglass
From Pixelmon Wiki
Isi's silver hourglass is a single-use item that advances a breeding Pokémon's breeding stage by one stage. It doesn't work if the Pokémon is not satisfied with its environment. It can be obtained as a tier 1 special drop. It is a possible drop from legendary boss Pokémon.
Trivia
- The hourglass's namesake, Isi, is one of Pixelmon's administrators.