Bringing the Bashe down with 10 semi-simultaneous shots was a solid plan based on simple mathematics Ren trusted he'd calculated correctly.
The numbers were sound, the theory was proven.
Three stakes had created a noticeable effect; 10 would be overwhelming.
The problem was that the same simple calculation also showed him he couldn't simply make 10 of those stakes and fire them in succession as rapidly as he'd executed the previous 3.
It was a too costly attack in terms of mana expenditure.
Making 10 stakes required slightly more than 20% of the wolverine's total internal mana to create with appropriate density and launch with the necessary speed to ensure the shot wouldn't be dodged.
And although it could recharge mana from its core during battle, it would have to do so mid-attack if it attempted to fire all 10 in an already somewhat slow sequence.
