Tui and La, Moon and Ocean + Sinking Feeling + Earthcraft

Tui and La, Moon and Ocean

Sinking Feeling

Earthcraft

How it works

1. Activate a basic land by tapping it, adding 1.
2. Activate Earthcraft by tapping Tui and La.
3. Tui and La's first ability triggers, causing you to draw a card.
4. Resolve the Earthcraft ability, untapping the basic land.
5. Activate Tui and La by paying 1 and putting a -1/-1 counter on it, untapping it.
6. Tui and La's second ability triggers, putting a +1/+1 counter on it.
7. Repeat.