Oh right, the weapons. Uhh quick info dump:
Earthsplitter: really can split the ground. Maybe 10 ft radius from where it hits, varying somewhat by the strength of the hit? But aside from maybe tripping you, it's not gonna be a big inconvenience. Can also send out single fissures towards the enemy, but again, it's not going to open up a chasm into the earth or anything; it's more for causing someone to lose their footing. The shockwaves it sends out are a bigger deal, just picture any video game boss with a shockwave attack and you've got the right idea.
Heavens Asunder: parting the clouds is literal but probably embellished. Like it would be the kind of thing that's a neat visual effect, but at that range you're not going to actually hurt most people with it. Effective range for cutting someone is probably... I dunno, 500 ft? More than that and it might knock you over, more than that and it's just a strong wind. At close range, like up to 30 ft, the cutting wind is more dangerous than actually getting hit by the blade itself.
Skyburner: transforms into a real bolt of lightning when thrown, which moves at the speed of lightning, yes. Can be thrown normally also, just depends on what the thrower wants. If it does the lightning thing, then it hits you as lightning too, and only transforms back to a solid object afterward.
Radiant: just picture trying to get near an open flame. From a distance it's not too bad, as you get closer it gets painful, and even closer and you start getting burned. Except this is holy light, not fire, so apply standard weaknesses and resistances as you will. Differentiates between friend and foe, so won't hurt its wielder.
why have i written so much about this character
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"The courtroom is the garden of holy judgment. Those with lechery in their hearts should leave this sanctuary at once!" ~Franziska von Karma