Jordrin’s spell ends with the “destroy a column”. Other troops that use this wording, such as Deep Borer, allow the player to select a column. But Jordrin’s destroys a random column instead.
So either:
There’s an error in the text, and Jordrin’s spell should be updated to read “destroy a random column”, OR
There’s an error in the spell effect, and Jordrin’s spell should allow the player to select a column to destroy
There’s an unspoken design rule that all spells utilizing a manual target only ever prompt the player for ONE input (enemy, ally, or tile on the board), and the targets of any/all secondary effects are either specified directly (e.g. strongest troop) or selected at random. Additionally, spells that target multiple tiles on the board even as their “primary” effect (e.g. “destroy # gems”) must select them at random.
A few comparisons:
Herne (Divinion Fields Siegebreaker) “Deal # damage to an enemy … Destroy a random row.”
The row would have been random anyway, but this spelltext actually says it.
Tyran and Rex (Drifting Sands Godslayer Troop) “Deal # damage to an enemy … then become Enraged OR destroy a row.”
The destroy is not guaranteed, and the row is selected at random.