Cheapest priced copy (Assassin's Creed): $0.39 at Card Kingdom, near mint, their price list as of .
Shay Cormac 
Legendary Creature — Human Knight Rogue · 1/1 · Uncommon · Assassin's Creed · #65
{1}: Permanents your opponents control lose hexproof, indestructible, protection, shroud, and ward until end of turn.
Whenever a creature an opponent controls becomes the target of a spell or ability you control, put a bounty counter on that creature.
Whenever a creature with a bounty counter on it dies, put two +1/+1 counters on Shay Cormac.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.39 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Assassin's Creed | 65 | Uncommon | $0.39 | $0.49 |
| Assassin's Creed | 153 | Uncommon | $0.39 | $0.49 |
| Assassin's Creed | 248 | Uncommon | — | — |
4 rulings from Wizards of the Coast
- 5 July 2024Because damage remains marked on a creature until damage is removed as the turn ends, damage previously dealt to a creature with indestructible may cause it to be destroyed if Shay Cormac’s first ability resolves later during that turn. This is notably not the case with protection, as protection prevents damage.
- 5 July 2024Shay Cormac’s second ability resolves before the spell or ability that caused it to trigger. It resolves even if that spell or ability is countered.
- 5 July 2024If a permanent enters the battlefield under an opponent’s control with hexproof, indestructible, protection, shroud, and/or ward after Shay Cormac’s first ability resolves, it won’t lose that ability until you activate Shay Cormac’s first ability again. The same is true if an opponent’s permanent gains one of those abilities after Shay Cormac’s first ability resolves.
- 5 July 2024Shay Cormac’s last ability looks for any bounty counter on a creature, not just one from that Shay Cormac. For example, if players A and B each control a Shay Cormac and player A has put a bounty counter on player C’s creature, both players A and B will put two +1/+1 counters on their respective Shay Cormacs when that creature dies.