Cheapest priced copy (Masters 25): $0.35 at Card Kingdom, near mint, their price list as of .
Thresher Lizard 
Creature — Lizard · 3/2 · Common · The List · #AKH-150
This creature gets +1/+2 as long as you have one or fewer cards in hand.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 153 | Common | $0.35 | $0.49 |
| Amonkhet | 150 | Common | $0.35 | $0.49 |
| The List | AKH-150 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 16 March 2018Because damage remains marked on a creature until it's removed as the turn ends, nonlethal damage dealt to Thresher Lizard while you have one or fewer cards in hand may become lethal if cards are put into your hand during that turn.