Fortnite which backblings are rare except for season 2?

Hello which are rare backblings in fortnite so backpacks are rare and not the season 2 and is actually the sense hoe rare.

The scythe hoe was rare, it may be that maybe it is rare because it was 2 days in the shop where Skull Trooper was back.

Backblings I think did not exist in Season 2, right?

EVLT. Rostlaube (there was a free day in the shop NEN) have him bion me but not sure if it was after season 2