The Warp spell was one of the three diagrams in Noah's possession that he could use for the entirety of his cultivation journey.
Yet, Noah found it hard to use it efficiently as his power grew.
The issue wasn't with the power of the spell, but with its effects.
The smoke of the Demonic form became more threatening each time he memorized a Kesier rune, and the Body-inscription spell's power was linked to the magical beasts turned into Blood companions.
Those spells were clearly battle oriented, and Noah could always put them to good use in any of his fights.
However, the Warp spell had effects not strictly related to combat.
The spell was useful to travel long distances and lose track of any pursuer, but it had unfavorable conditions to its activation that made it quite predictable in battle.
The teleportation required time and the cultivators on Noah's level were able to react to that sudden tremor in the air, he couldn't use it to take his enemies by surprise anymore.