Homura's “Determination” is a Weiß Schwarz card from 劇場版 魔法少女まどか☆マギカ[新編]叛逆の物語 MM/W35-054. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Card type
Character
Side
Weiß
Color
Green
Level
2
Cost
1
Power
8000
Soul
1
Trigger
Soul
Traits
Magic, Time
Neo-Standard
Puella Magi Madoka Magica
Card Text
【AUTO】 [【REST】 one of your 【STAND】 《Magic》 characters] When this card attacks, you may pay the cost. If you do, choose one of your other 《Magic》 characters, and that character gets +2000 power until end of turn.