Salvaging Station, Elven Bow, Ashnod's Altar, and Phantom Train

Prerequisites

• Salvaging Station on the battlefield
• Elven Bow in the graveyard
• Ashnod's Altar on the battlefield
• Phantom Train on the battlefield
• available

Steps

1. Activate Salvaging Station by tapping it, returning Elven Bow from your graveyard to the battlefield
2. When Elven Bow enters, it triggers, causing you to pay to create a 1/1 Elf Warrior creature token and attach Elven Bow to it
3. Activate Phantom Train by sacrificing Elven Bow
4. Activate Ashnod's Altar by sacrificing the Elf Warrior, adding
5. When the Elf Warrior dies, Salvaging Station triggers, untapping Salvaging Station
6. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers