The Ferryman's revenant

you flip the coin and a spectral ferry appears you step onto the ferry. you become invisible for 1 round and you teleport up to 30ft to a unoccupied space of your choice. when you become visible again you gain D8 temporary hit points. while in this form which lasts for 3 rounds your attack's deal an extra D6 plus your spell modifier damage, your movement increases by 10ft and when you reduce a creature to 0 hit points you can move 10ft and make another attack.