Last hit, use Q for poke, only trade auto if passive is on the ennemy.
Try to maintain conq stacks with Q, so eventually you can take fight, but depending on matchups you might just wanna scale. You are a hypercarry.

Soak ressources, take krugs or raptors depending if you play top or mid, get waves, don't miss cs, get proper wave management. Look for potential roams, if you can't roam don't force it and try to scale and find good fights, at this point if you have botrk or kraken you should win fights.

Play around your ult. Wait for an ennemy to get decently low, and combo him to get the reset, the fight should be won from there. You can also catch people offguard or flank very nicely with your E on viego so don't underestimate that. This is why it's usually the most fun and you can really popoff, if you reach this point in the game but you feel useless, i'm not gonna lie you just troll built. It's very important on Viego to adapt build, if you need armor get armor, if you need mr get mr, if you need both get dd and wits. You have so many build path available, squishies ? collector and crit. Tanks? lord dominiks and blade of the ruined king.

If you guys enjoyed this guide make sure to come by the stream here , i'm a master EUW player at the time of making this guide, I main Zilean, however i'm not a one trick and i play a lot of different stuff so you might not catch me on the champ!