Tidewalker [Planar Chaos] Tiefling Barbarian Invasion Beams — When Night

Invasion Beams — When Night Scythe enters the battlefield

Set: Theros Type: Legendary Enchantment Artifact Rarity: Rare Cost: {2}{B}{B} Creatures you control have lifelink

That's him

Set: Dungeons & Dragons: Adventures in the Forgotten Realms Promos Type: Legendary Planeswalker — Mordenkainen Rarity: Mythic Cost: {4}{U}{U} +2: Draw two cards

Set: Zendikar Rising Prerelease Promos Type: Legendary Planeswalker — Nahiri Rarity: Mythic Cost: {2}{R}{W} +1: Create a 1/1 white Kor Warrior creature token

Tidewalker [Planar Chaos] Tiefling Barbarian Invasion Beams — When NightSet: Planar Chaos Type: Creature Elemental Rarity: Uncommon Cost: {2}{U} Tidewalker enters the battlefield with a time counter on it for each Island you control. Vanishing (At the beginning of your upkeep, remove a time counter from this creature. When the last is removed, sacrifice it.) Tidewalker's power and toughness are each equal to the number of time counters on it.