Sivir

Sivir is the most tactical marksman on this roster. Spell Shield isn't a passive safety net, it's a duel button: it erases the ability the enemy engage is built on and hands you mana back when it connects. Used well it's worth more than a completed item, and it changes how the other team is allowed to approach you at all.

Around that, Ricochet turns any wave to dust and On The Hunt gives your whole team the movement and attack speed to catch an enemy who didn't want to fight. Her weakness is physical: she attacks from closer than most marksmen and owns nothing to escape once somebody has landed on top of her.

Your tower pressure is the best in the game. With Ricochet and a little attack speed you delete a wave in a heartbeat, bounce it into the champion standing behind, and force an enemy rotation just by existing on a side lane. Your ultimate is an engage tool as much as an escape: it lets a whole team run an opponent down or peel off a fight that went wrong, and its value is decided before contact, not during.

In exchange, your attack range is short for a carry, which parks you inside the danger zone of everything that jumps. Your poke lives entirely on Boomerang Blade, an expensive projectile that drains you when you miss. And if you spend the shield at the wrong moment, you're a slow, immobile target with a very ordinary health bar.

The early game is a mana management exercise. Boomerang Blade is costly, so only throw it when the same line hits the champion and the wave, angled so it connects on the way out and the way back. Ricochet costs you nothing by comparison: the only risk is shoving the wave by accident, so save it for moments when you accept pushing, or trades where the enemy stands just behind their minions.

Spell Shield is your real skill expression in lane. Watch their support, not their carry: the root or stun is what decides the phase. A shield raised a fraction of a second before they commit erases the spell, refunds you mana, and turns their aggression into a gift. A shield burned on reflex against a harmless spell costs you your life a second later.

Your first genuine spike isn't an item, it's the level where your shield is back often enough to be up for every enemy approach. From then on the botlane is yours if you read their opening, because they can no longer engage without throwing their best button into nothing.

After that, Sivir scales like any marksman: the first attack speed item with a crit effect moves Ricochet from a clearing tool to a real teamfight damage source, and armor penetration puts you back in the game against front lines. Unlike most carries, you don't need to be ahead to matter, because your ability to shove towers generates gold even in a losing game.

You stand further back than any other marksman, because your range is the shortest. Stay behind the front line, wait for their crowd control to be spent, then walk forward hitting. In a pile, Ricochet does more total damage than any clean single-target attack, so look for the angle where your primary target is surrounded by bodies instead of the tidy duel.

Never fire On The Hunt into the middle of a fight on reflex: it's an opening or a retreat spell, used the moment your team commits or the moment it disengages. As for the shield, keep it for the ability that would genuinely kill you, the enemy initiator's. Raising it against a damage spell with no lockdown wastes the one button that could have flipped the fight.