The Wandering Emperor is a mythic Legendary Planeswalker card from Kamigawa: Neon Dynasty (NEO), collector number 303. Current market price: $5.60 (foil $10.33), TCGplayer market prices via Scryfall.
Flash As long as The Wandering Emperor entered this turn, you may activate her loyalty abilities any time you could cast an instant. +1: Put a +1/+1 counter on up to one target creature. It gains first strike until end of turn. −1: Create a 2/2 white Samurai creature token with vigilance. −2: Exile target tapped creature. You gain 2 life.