Arc Warden + Undying

Why this works

Forcing the enemy to deal with a Tombstone can give Arc Warden the breathing room he needs. The chaos from Undying's teamfight presence creates an ideal scenario for the Tempest Double to get free hits on heroes or buildings from a safe distance. While opponents are occupied with zombies and the threat of Decay, Arc Warden can more easily land his own spells like Flux and Spark Wraith on distracted targets. The synergy isn't about a direct spell combination, but rather Undying creating a messy fight that a hero like Arc Warden is well-equipped to exploit from the edges.

This dynamic helps secure Arc Warden's crucial early farm, as Undying's constant pressure in other lanes can draw enemy attention away. During mid-game objectives, the enemy team faces a dilemma: focus the tanky Undying, kill the Tombstone, or deal with two Arc Wardens pushing from afar. This target priority problem often buys enough time to secure a tower or win a fight of attrition. The edge is slight because this strategy depends on the enemy lacking the specific tools to quickly burst down the Tombstone or ignore Undying's frontline pressure. If they can manage that, the advantage fades.