Cheapest priced copy (Rivals of Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .
Storm Fleet Swashbuckler 
Creature — Human Pirate · 2/2 · Uncommon · Rivals of Ixalan · #117
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
This creature has double strike as long as you have the city's blessing.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Rivals of Ixalan | 117 | Uncommon | $0.35 | $0.49 |
8 rulings from Wizards of the Coast
- 19 January 2018Ascend on a permanent isn't a triggered ability and doesn't use the stack. Players can respond to a spell that will give you your tenth permanent, but they can't respond to getting the city's blessing once you control that tenth permanent. This means that if your tenth permanent is a land you play, players can't respond before you get the city's blessing.
- 19 January 2018A permanent is any object on the battlefield, including tokens and lands. Spells and emblems aren't permanents.
- 19 January 2018Some cards get power, toughness, and/or abilities once you have the city's blessing. If another card has an ability that triggers when creatures with certain characteristics enter the battlefield (such as Mentor of the Meek or Elemental Bond do), use the entering permanent's characteristics after you have the city's blessing to determine whether those abilities trigger. This is true even if the entering permanent is your tenth permanent.
- 19 January 2018If you cast a spell with ascend, you don't get the city's blessing until it resolves. Players may respond to that spell by trying to change whether you get the city's blessing.
- 19 January 2018If you control ten permanents but don't control a permanent or resolving spell with ascend, you don't get the city's blessing. For example, if you control ten permanents, lose control of one, then cast Golden Demise, you won't have the city's blessing and the spell will affect creatures you control.
- 19 January 2018If your tenth permanent enters the battlefield and then a permanent leaves the battlefield immediately afterwards (most likely due to the "Legend Rule" or due to being a creature with 0 toughness), you get the city's blessing before it leaves the battlefield.
- 19 January 2018If Storm Fleet Swashbuckler gains double strike after it has dealt regular combat damage, it won't go back and deal first-strike combat damage. On the other hand, if it gains first strike somehow and then it gains double strike after dealing first-strike combat damage, it will also deal regular combat damage.
- 19 January 2018Once you have the city's blessing, you have it for the rest of the game, even if you lose control of some or all of your permanents. The city's blessing isn't a permanent itself and can't be removed by any effect.