Greetings!
8th is known for its lower octaves that are about financial ruin. 8th is best sublimated into any kind of absolute power - special services, extreme finances / gigantic banking (usually there is no now too many Gentiles on this position, worst Zodiac degree sublimation into wealth is Elon Musk or Trump level) / absolute political power and of course magic. Other great sublimation that works in most cases is high achievements in professional sports. Zevist on non-president non-world-champion position would quicker sublimate it into very powerful magic. 8th is about magic and influence on the world, 15 Leo is either insane impact or insane disaster. It is one of the major degrees of power, I believe. Yet used as a sublimation tool, magic that is about just attracting something material to yourself always demands some creative efforts in material world too. If you want magic that is independent, it needs to has its ending goal on the astral, such as work for the Gods or for the astral world in this or that way such as working with a soul etc, such as that HPS Maxine did for the Gods and the dead. Magic for material goals demands material achievment to be used as complete sublimating tool. Because sublimation is about feats and achievements being made.
Now, most important is natal chart, then great planetary returns, such as Saturnars, then Solar, then Lunars. The quicker the planet, the more detailed is the prediction. I personally believe in every planetary return. Yet people usually watch Solars and Lunars. Natal is lifetime Return, it is the most powerful fated prediction but the least detailed. It contains major signs most fated yet least dependent on specific time period. Solar is less powerful and more specific to the time period, Lunar is less powerful than Solar and further detailed. This is why we have endless Lunars with all kinds of dead signs and almost never anything happens - because Solar is better and Natal is the best. The shorter depends upon the longer. The shorter details the longer. So if you have best natal, Solar might not destroy you, while if your natal is an inquisition torture room things can happen in even slightly shadowed Solar. Insane sublimation is needed to streighten major powers of such chart.
So if you have best natal, this will help. Do your protection and good Esbath cleansing (28 days), especially if you have Saturn transiting any of your CR or AC in this period. But always be aware that these things such as higher planets, Saturn and especially critical stars and degrees are major powers and talents to be used for your purposes. For us Zevists, powerful magical impact in the sphere of the house and sign of the degree, black or white one, might produce sublimational effect comparable to those sports does for world champions, but it has to be the same or more impact then because sublinmation is about impact. The amount of impact into the universe is the key here, I think. Geniuses and rulers / major power holders tamed this energy to change the world because apparently it is for that.
For example you might have a goal of all your life. 8th is about power. You might try to channel the insane energy of this Solar to achieve your life goal for example by doing powerful 360 days working this year, why not. Again if your goal concerns your own fate in material world it might include material effort.
Stay safe, Sibling in Zeus!