Murderous Redcap, and Zameck Guildmage

Prerequisites

• Murderous Redcap in hand
• Zameck Guildmage on the battlefield
• available

Steps

1. Activate Zameck Guildmage's first ability by paying
2. Cast Murderous Redcap by paying , which enters with a +1/+1 counter on it due to Zameck Guildmage
3. When Murderous Redcap enters the battlefield, it triggers, dealing an amount of damage to itself equal to its power
4. Murderous Redcap dies as a state-based action due to having 0 toughness
5. Murderous Redcap's persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Zameck Guildmage
6. Repeat from step 3

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers