Finished the Elemental event without using gems! Put in a ton of effort lol

It feels like this is my third time doing the Elemental event, now that I'm 3 months in. Before, I didn't even dare to try and just ended up getting enough to hatch eggs. After getting the final rewards from the portal event a few times, I gained confidence. So I got greedy with this Elemental event too, but it's on a whole different level lol I purified all the land except for about 10 spots, mostly on the silver capsule side. But then I couldn't get the final reward... I did manage to get the final reward using the method below, but it took me an insane amount of time over 3 days. I don't think I can do it again lol 1. Purified almost all the land using 6 max-level purification orbs. 2. Opened all the brown capsules obtained from purifying the land, which gave me a few level 1 hills. I merged them to create harvestable hills. By continuously harvesting and merging those hills, I got a misty mountain. 3. Harvested the misty mountain, collected rainwater to make a pond, and made it spit out grass. 4. Harvested the grass to make stones. By leveling up the stones and harvesting, I got treasure chests in addition to bricks. 5. Merged the treasure chests to create a max-level 7 item, and opening it gave me point-giving items. I opened 9 chests and filled up all the points, OMG ㅋㅋ😂😂