Naturally, he wanted to use his speed as an advantage against the dragonite warrior but he should not forget that the dragonite warrior has the first reaction and because of this you can see the moment when that Lepris Warrior about to hit the dragonite warrior, he already jumped from that place.
Not only that, in the next again you can see a spear directly going toward the direction. Fortunately that Lepris Warrior once again disappeared from that place and with that he did not get hit by that spear.
But when that Spear hit the ground it instantly exploded and a hole was created in that ground. Without you can imagine how much spiritual energy that dragonite Warrior was using and how powerful his Spear had become that it could easily create a hole like this.