All standard modes allow you to play on Wait, which is more beneficial to the player in almost every sense. If you want to challenge yourself, feel free to play on Active.

Magus' Black Hole tech was prone to softlocks, as well as not being terribly useful in most situations. In Jets of Time, it has been replaced by a new tech, Antilife. It does high amounts of nonelemental magic damage to a single target, at the cost of all of Magus' remaining HP. It is commonly combo'ed with Revives or Life/Life2.