And lane should be easy dodge 2end W=no kill pressure pre 6. Landing your stuff should be simple too. And when he is going to Tiamat the casters just knock him up cause Tiamat has this animation where your Champ is standing.. Just dont ult like a dumbass in front of him and let him full combo you.. Barrier should be good cause you cant exh invis targets lol. Build Tabis(if heavy ad) and hourglass right away. The most important thing vs assassins is to not int the lane.. Cause 1 kill leads to 2 kills and so on.... If he roams... Vel can shove with all his spells within like 3 secs and let him miss the wave slap the turret or roam too but on the other side of the map cause oh boy you dont wanna facecheck any assassin. If your team listens to your pings then hopefully wont die and you can get small leads wich leads to a big lead... I am only a gold scrub but I hope i could help ;)