Did they nerf Swain?

We're giving Swain mid a moderate buff this patch while also making an adjustment that should help normalize his mid and bot lane performance.

• > Base Stats · Base Magic Resistance: 31 ⇒ 34
• > Base Stats · Base Armor: 25 ⇒ 23
• > W - Vision of Empire · Damage: 70 / 105 / 140 / 175 / 210 (+60%) ⇒ 70 / 115 / 160 / 205 / 250 (+60%)
• > W - Vision of Empire · Cooldown: 22 / 21 / 20 / 19 / 18s ⇒ 20 / 19 / 18 / 17 / 16s