Tap Wellwisher to activate it, gaining at least 3 life.
Activate Wirewood Symbiote by returning itself to your hand, untapping Wellwisher.
Pay 2 life to cast Wirewood Symbiote.
Defiler of Vigor triggers, putting a +1/+1 counter on each creature you control.
Resolve Wirewood Symbiote.
Repeat.

Infinite ETB

Infinite lifegain

Infinite lifegain triggers

Infinite LTB

Infinite storm count

Infinite untap of creatures you control

Infinite mana creatures you control can produce

Infinite +1/+1 counters on creatures you control

Defiler of Vigor

Wellwisher

Wirewood Symbiote

Maskwood Nexus

Activate Lurking Roper using Wellwisher's ability by tapping it, causing you to gain at least 1 life.
Lurking Roper triggers, untapping itself.
Repeat.

Agatha's Soul Cauldron

Lurking Roper

Activate Famished Paladin using Wellwisher's ability by tapping it, causing you to gain at least 1 life.
Famished Paladin triggers, untapping itself.
Repeat.

Famished Paladin

Activate Wellwisher by tapping it, causing you to gain at least three life.
Prize Pig triggers, putting three ribbon counters on it, then removing all ribbon counters on it and untapping it.
Activate Prize Pig by tapping it, adding {U}.
Activate Pemmin's Aura's first ability by paying {U}, untapping Wellwisher.
Repeat.

Prize Pig

Pemmin's Aura

Activate Wellwisher by tapping it, causing you to gain at least three life.
Prize Pig triggers, putting three ribbon counters on it, then removing all ribbon counters on it and untapping it.
Activate Prize Pig by tapping it, adding {U}.
Activate Freed from the Real's second ability by paying {U}, untapping Wellwisher.
Repeat.

Freed from the Real

Activate Wellwisher by tapping it, causing you to gain life.
Archangel of Thune triggers, putting a +1/+1 counter on each creature you control.
Activate Crystalline Crawler ability by removing a +1/+1 counter from it, adding {U}.
Activate Pemmin's Aura's ability by paying {U}, untapping Wellwisher.
Repeat.

Combos with "Wellwisher"