Underwater and Defender Crystals
The tsunami cleared every obstacle that was within its path. It did not matter if it was a building, a vehicle, or even a group of people that was found within the path, all of them were cleared out by the wave.
Not long after, the tsunami finally arrived in front of the building. And as expected, it crashed into the building just like it had done with all the other buildings that it had come across along the way.
Booom!
Rather than the building getting destroyed, there was a large collision sound that rang into the air. As for the building itself, it simply shook for a moment, before finally stabilizing.
But still, although it was able to withstand the power of the tsunami, it was still submerged into the water. As for the tsunami itself, it continued moving forward, easily taking the lives of the group that had decided to go away from the building, trying to escape the tsunami.