/jp/ - Otaku Culture

>>9079026

>Why didn't masters use a command spell like "Don't lose" or something which guarantees victory

This was covered in the VN. Command Spells are an order. A single, instantaneous order can achieve phenomenal mysteries, but the longer you try to drag out the magic, the weaker it gets. An order to "not lose", a command with no duration at all, would barely help the Servant in any way.

Waver Velvet expended all three of his Command Spells to order Rider to attain victory, and while it did reinforce his power, it did not make him a super-invincible Servant or anything.