First printed in Modern Horizons (2019)
Creature — Shapeshifter
Changeling (This card is every creature type.)
Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays 
.
The call of the sea shapes many souls.
2/2
- Illustrated by
- John Stanko
Legality
- Legal in
- Modern, Legacy, Vintage, Penny Dreadful, Commander, Duel Commander, Tiny Leaders, Oathbreaker
- Not legal in
- Standard, Pioneer, Pauper, Future Standard, Historic, Timeless, Alchemy, Premodern, Old School 93/94, Gladiator, Pauper Commander, PreDH, Brawl, Standard Brawl, Competitive Brawl
Rulings (2)
- If you and a permanent you control each become the targets of the same spell or ability an opponent controls, Unsettled Mariner’s ability will trigger twice. The same is true if two permanents you control each become the targets of the same spell or ability an opponent controls.
- If a spell or ability an opponent controls targets only you or only one permanent you control, but it targets you or that permanent multiple times, Unsettled Mariner’s ability triggers only once.
Prices
MTGO price: 0.02 TIX, the cheapest non-foil print (average sell price on GoatBots, 31 Oct 2026).
