Yes, you can still get Case 1 skins now that it's retired, though only through a small chance of a post-match drop or by buying them directly, since the case itself is no longer in the regular rotation.

Yes, knives work differently from regular weapon skins, they occupy their own separate inventory slot and tend to hold value better since you see them every round regardless of which gun you're using.

Yes, BloxStrike's rarity and wear system is modeled directly on CS:GO's, using the same color-coded tiers and float-based wear grades like Factory New and Battle-Scarred.

Yes, you keep the skins, knives, and gloves included with my purchase, exactly as shown in the listing.