@ AzcAdDf It is possible to survive the Gae Bolg of Scathach purely by luck, since the spear, although it manipulates probabilities and concepts, does so in a limited manner. The spear nullifies life and returns everything to a state of death.
Not to mention that its main ability is 'it always hits its target unless the script requires otherwise .' However, the problem with the spear is that it must make contact with the user's soul through mana.
Unfortunately for Scathach, Terraspin is 99% immune to magic, as his body absorbs, produces, and releases it naturally. Considering that one of the same species dominated the Leger Domain, the home of Charmcaster, you can get an idea of his magical control, even if Ben does it involuntarily.
Clockwork can also do this, as unfortunately for Scathach, the Chronosapiens possess something called 'Chrono Sense,' which appears randomly in Ben. However, Maltruant has demonstrated the ability to control it. This ability allows you to see all moments, both future and past, in brief flashes (the only weakness of this ability is that time is not linear, so you don't know if something will happen or not, which means you have to travel through time to ensure it occurs).
Although the Gae Bolg also manipulates space to eliminate distance and make the attack appear instantaneously, the spear is still tied to time. That's why you never see a Lancer wielding two Gae Bolgs at the same time, at least within the canon.
In summary, the Gae Bolg almost entirely depends on the power of its user, and while Scathach has made the most of the spear, even she cannot counteract its problems, which is why almost all her adversaries can evade it with relative ease.
