Haru, Hidden Talent, Dryad Arbor, Maskwood Nexus, and Sylvan Safekeeper

Prerequisites

• Haru, Hidden Talent on the battlefield
• Dryad Arbor in hand
• Maskwood Nexus on the battlefield
• Sylvan Safekeeper on the battlefield

Steps

1. Play Dryad Arbor
2. When Dryad Arbor enters as an Ally due to Maskwood Nexus, Haru triggers, earthbending Dryad Arbor
3. Activate Dryad Arbor by tapping it, adding
4. Activate Sylvan Safekeeper by sacrificing Dryad Arbor, targeting Haru
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 Maskwood Nexus, Haru triggers, earthbending Dryad Arbor
7. Repeat from step 3
8. Resolve all Sylvan Safekeeper abilities

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers
• Infinite green mana