Inferno Titan + Zagras, Thief of Heartbeats + Scythe of the Wretched

Inferno Titan
Zagras, Thief of Heartbeats
Scythe of the Wretched

Requires
All permanents on the battlefield. Scythe of the Wretched attached to inferno Titan. Inferno Titan does not have summoning sickness.
Steps
  1. Attack with Inferno Titan, triggering Inferno Titan and dealing 2 damage divided among targets of your choice and 1 damage to itself, destroying Inferno Titan
  2. Scythe of the Wretched triggers, returning Inferno Titan to the battlefield with Scythe of the Wretched attached to it
  3. Inferno Titan triggers, dealing 2 damage divided among targets of your choice and 1 damage to itself, destroying Inferno Titan
  4. Repeat
Results
Infinite ETB. Infinite death triggers. Infinite LTB. Infinite damage.