Kenrith, the Returned King, Earthcraft, Agatha of the Vile Cauldron, and Treva's Attendant

Prerequisites

• Kenrith, the Returned King on the battlefield
• Earthcraft on the battlefield
• Agatha of the Vile Cauldron on the battlefield
• Treva's Attendant in the graveyard
• available

Steps

1. Activate a basic Swamp by tapping it, adding
2. Activate Kenrith's fifth ability by paying due to Agatha, returning Treva's Attendant from your graveyard to the battlefield
3. Activate Earthcraft by tapping Treva's Attendant, untapping the basic Swamp
4. Activate Treva's Attendant by paying and sacrificing it
5. Repeat

Results

• Infinite +1/+1 counters on creatures you control
• Infinite ETB
• Infinite LTB
• Infinite blue mana
• Infinite card draw for any number of players
• Infinite death triggers
• Infinite draw triggers for any number of players
• Infinite green mana
• Infinite lifegain
• Infinite lifegain triggers
• Infinite sacrifice triggers
• Infinite white mana