Ugin, the Ineffable is a rare Legendary Planeswalker — Ugin card from War of the Spark Promos (PWAR), collector number 2p. Current market price: $2.78 (foil $4.57), TCGplayer market prices via Scryfall.
Colorless spells you cast cost {2} less to cast. +1: Exile the top card of your library face down and look at it. Create a 2/2 colorless Spirit creature token. When that token leaves the battlefield, put the exiled card into your hand. −3: Destroy target permanent that's one or more colors.