Ashaya, Soul of the Wild, Titania, Protector of Argoth, and Vesuva

Prerequisites

• Ashaya, Soul of the Wild on the battlefield
• Titania, Protector of Argoth on the battlefield
• Vesuva in hand

Steps

1. Play Vesuva, and choose to have it enter the battlefield as a copy of Titania
2. Put Vesuva into your graveyard due to the legend rule
3. Vesuva's first ability and second ability trigger, as well as Titania's second ability
4. Resolve the second Vesuva trigger and the Titania trigger, creating two 5/3 Elemental creature tokens
5. Resolve the first Vesuva trigger, returning it from your graveyard to the battlefield as a copy of Titania
6. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite creature tokens
• Infinite landfall triggers