How Swain's rework SHOULD have gone.
Passive: Swain gains a Soul Shard from Immobilized enemies or enemies he hits with W (no longer has the pull part and is automatic)
Q: If Swain has 3+ Soul Shards the damage always Pierces targets and the mana gained for killing a target is doubled. This cost Swain a Soul Shard.
W: If Swain has 3+ Soul Shards the cast delay is 50% and the slow is increased by 10%. This cost him a Soul Shard.
E: Rooted targets are pulled toward swain (like his Old Passive). If Swain has 3+ Soul Shards the range and speed of E is +25%, this cost him a soul shard
R: For each soul shard Swain has increases the healing and damage of his Ult by 5%, If he has 3+ Soul Shards when he explodes targets hit are slowed by 30%