Urborg Panther (ES) U if it's the first combat

if it's the first combat phase of the turn

Put the rest into your hand

Dreadhorde Champion deals combat damage to a player or planeswalker

March of Wretched Sorrow deals X damage to target creature or planeswalker and you gain X life

Whenever a creature or planeswalker you control becomes the target of a spell or ability an opponent controls

Urborg Panther (ES) U if it's the first combat{B}, Sacrifice Urborg Panther: Destroy target creature blocking Urborg Panther. Sacrifice a creature named Feral Shadow, a creature named Breathstealer, and Urborg Panther: Search your library for a card named Spirit of the Night, put that card onto the battlefield, then shuffle.