Also, the half-anni banner with Riko should come with a Rice pwr card that also gives Maestro like creek so it's overall a really good banner to roll on if you need better support cards.

>>716368932
If I recall correctly, normal events give 3 shards that can be combined into 1 SSR uncap mat once you have 20 of them. So you'd be able to uncap a gacha SSR once for free every 7 events.