for the ultimate you would need to do this:
GeSHi (eventscripts):
"skill1_setting" "es_xsetinfo wcs_speed 1.1;es_xsetinfo wcs_hp 10;es_xsetinfo wcs_dur 2.0|es_xsetinfo wcs_speed 1.2;es_xsetinfo wcs_hp 15;es_xsetinfo wcs_dur 3.0|es_xsetinfo wcs_speed 1.3;es_xsetinfo wcs_hp 20;es_xsetinfo wcs_dur 4.0|es_xsetinfo wcs_speed 1.4;es_xsetinfo wcs_hp 25;es_xsetinfo wcs_dur 5.0|es_xsetinfo wcs_speed 1.5;es_xsetinfo wcs_hp 30;es_xsetinfo wcs_dur 6.0"
"skill1_cmd" "es est_healthadd server_var(wcs_userid) server_var(wcs_hp);es est_speed server_var(wcs_userid) server_var(wcs_speed);es_delayed server_var(wcs_dur) est_speed server_var(wcs_userid) 1.0"
"skill1_sfx" "es est_effect 4 #a 0 sprites/tp_beam001.vmt server_var(wcs_userid) 0.5 50 50 50 255 0 25 255"
"ultimate_cooldown" "15"
I made a really wierd trail when you use it just ask me if its too big and ill edit it

next time just c&p and you will learn from that
EDIT* oh sorry i didnt finish it for the duration for the speed. I fixed it tho so it will go for 2-6 seconds at 1.1-1.5 speed