Haru, Hidden Talent, Dryad Arbor, Evereth, Viceroy of Plunder, and Xenograft

Prerequisites

• Haru, Hidden Talent on the battlefield
• Dryad Arbor in hand
• Evereth, Viceroy of Plunder on the battlefield
• Xenograft on the battlefield

Steps

1. Play Dryad Arbor
2. When Dryad Arbor enters as an Ally due to Xenograft, Haru triggers, earthbending Dryad Arbor
3. Activate Dryad Arbor by tapping it, adding
4. Activate Evereth by sacrificing Dryad Arbor
5. When Dryad Abor dies, Haru triggers, returning Dryad Arbor from your graveyard to the battlefield
6. When Dryad Arbor enters as an Ally due to Xenograft, Haru triggers, earthbending Dryad Arbor
7. Resolve the Evereth ability
8. Repeat from step 3

Results

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite green mana
• Infinite landfall triggers
• Infinite damage