Soar through the sky blade first!
Sprite ShovelKnight propellerDagger01

The Propeller Dagger is a Relic that allows Shovel Knight to fly horizontally through the air over a short distance. The Propeller Dagger can be used to ram into enemies. The Propeller Dagger can be purchased from Chester in the Flying Machine stage for 4000 gold or in the Village for 5000 gold if it was not picked up before completion of the level. The Propeller Dagger is the subject of the Flying Feat feat, which is earned by defeating 3 enemies using the Propeller Dagger without touching the ground.

With Amiibo mode, Custom Knight can use two relics similar to the Propeller Dagger, the Rising Dagger, which propels upwards and the Infinidagger that allows to stay in the air indefinitely until he hits something or takes damage.