The Battle Sisters (バトルシスター Batoru Shisutā) are a series of cards that include "Battle Sister" in its card name exclusive to the Oracle Think Tank clan. They were first introduced in Booster Set 1: Descent of the King of Knights, they received their first support in Extra Booster: Celestial Valkyries, and further support in Extra Booster: Mystical Magus and G Booster Set 5: Moonlit Dragonfang. They tend to focus on hand and field advantage, typically through superior calling more Battle Sisters and card drawing effects.
Background
Who are the Battle Sisters?
An agent force of the Battle Order "Sanctuary Guardians" that was secretly set up by the Oracle Think Tank Corporation in order to capture or kill criminals and unscrupulous companies. The agents are usually dressed up as nuns because ostensibly they are affiliated to the "Church." While the members are all excellent combatants and magic users, there are unexpectedly a lot of members with a quirky personality because they were assigned there due to circumstances that cannot be made public.
List of "Battle Sister" cards
Grade 0
- Battle Sister, Assam (Stand)
- Battle Sister, Chai (Heal)
- Battle Sister, Compote
- Battle Sister, Eclair
- Battle Sister, Ginger (Critical)
- Battle Sister, Muffin (Critical)
- Battle Sister, Tiramisu (Draw)
- Battle Sister, Waffle
Grade 1
- Battle Sister, Candy
- Battle Sister, Chocolat
- Battle Sister, Cocoa
- Battle Sister, Cream
- Battle Sister, Lemonade
- Battle Sister, Lollipop
- Battle Sister, Maple
- Battle Sister, Omelet
- Battle Sister, Rusk
- Battle Sister, Syrup
- Battle Sister, Taffy
- Battle Sister, Vanilla
Grade 2
- Battle Sister, Berrymousse
- Battle Sister, Caramel
- Battle Sister, Cocotte
- Battle Sister, Crepe
- Battle Sister, Glace
- Battle Sister, Macaron
- Battle Sister, Marshmallow
- Battle Sister, Mocha
- Battle Sister, Pannacotta
- Battle Sister, Pudding
- Battle Sister, Tarte
Grade 3
- Battle Sister, Cookie
- Battle Sister, Fromage
- Battle Sister, Gelee
- Battle Sister, Madeleine
- Battle Sister, Mille-feuille
- Battle Sister, Monaka
- Battle Sister, Parfait
- Battle Sister, Souffle
Grade 4
Trivia
- All the members had their name based on food/sweets.
- Though controversial, the Battle Sisters resemble Christian nuns.
- It is also known that nuns also can be called Sisters.