Cheapest priced copy (The Brothers' War): $0.35 at Card Kingdom, near mint, their price list as of .
Gixian Skullflayer 
Creature — Phyrexian Human Assassin · 2/3 · Common · The Brothers' War · #100
At the beginning of your upkeep, if there are three or more creature cards in your graveyard, put a +1/+1 counter on this creature.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War | 100 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 14 October 2022Gixian Skullflayer's triggered ability checks the number of cards in your graveyard both when it triggers and when it resolves. If there aren't three or more creature cards in your graveyard each time, you won't put a +1/+1 counter it.