You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Elemental Bond and Garruk's Uprising's second ability trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Elemental Bond and Garruk's Uprising's second ability trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Garruk's Uprising and Garruk's Packleader trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Elemental Bond and Garruk's Uprising's second ability trigger, causing you to draw two cards.
Repeat.

You have at least one card in hand.
Workhorse has at least one +1/+1 counter on it.

Activate Workhorse using Pack Rat' ability by paying and discarding a card, creating a token copy of it.
When the Workhorse token enters the battlefield, Garruk's Uprising's second ability triggers, causing you to draw a card.
Activate the Workhorse token three times by removing three +1/+1 counters from it, adding .
Repeat.

You have at least two cards in hand.
Beastmaster Ascension has at least five quest counters on it.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Garruk's Uprising and Garruk's Packleader trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Garruk's Uprising and Garruk's Packleader trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.
Beastmaster Ascension has at least five quest counters on it.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Kavu Lair and Garruk's Uprising trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Kavu Lair and Garruk's Uprising trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Elemental Bond and Garruk's Uprising's second ability trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Garruk's Uprising and Garruk's Packleader trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Kavu Lair and Garruk's Uprising trigger, causing you to draw two cards.
Repeat.

You have at least two cards in hand.

Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Kavu Lair and Garruk's Uprising trigger, causing you to draw two cards.
Repeat.

You have a way to draw a card.
There is at least one Insect on the battlefield.

Draw a card.
The Locust God triggers, creating a 4/4 Angel creature token due to Divine Visitation.
When the Angel enters the battlefield, Garruk's Uprising's second ability triggers, causing you to draw a card.
Repeat from step 2.

This combo will result in you drawing your library, and losing the game if it isn't interacted with. Ensure you have a way to avoid this before starting the combo.