Allright guys! Ive found little things about the trial stones and I can explain about that you use a trial stone lv93 then spawns a shadow lv125.
Ive started a new game on A2, and ive found the first trial stone lv12. I used it, and instead of the 125 shadow, it was the same lvl as me, ofc it killed me quickly since my stats and skills arent enough to kill a sub-boss yet. Then trough the game, ive found more trial stones, i used them all, and ALL the shadows of that trial stones were the same level as me.
I guess if you use the trial stones early, the shadow will be the same level as you, able for you to fight with it and have the godly armour. Just like i got an amazing shield with very decent block.
ALSO:
What if you ask me theres The Trials I, II and III.
If you kill the first shadow (its a warrior with a black axe and full set "shining") youll recieve a second portal called Trials II. The shadow of trials II is not the same as the first one, this time, the shadow is dressed of "dark set" with a storm seeker sword, all of these shadows has different ways to do attacks, and BE CAREFULL WHEN THEIR HP DROPS TO 40%, THEY CAN USE SUMMON STORM, AND BIG-BANG ATTACK. Then finally, as ive reached, the 3rd shadow, has the "archangel" set with dual falchions, its fast as hell. So if you wanna defeat this guy, you might need alot of training to do perfect blocks, with divine blessing and alot of speed in these fingers.