When to invade early, when to risk warding deep early, and when to stay the fuck on your side early
Seriously guys, it's not that hard. When the enemy team has 4 tanks with hard CC and a strong level 1 adc, you stay the fuck on your side.

To put it simply: If you have an insanely strong level 1 and your opponents is weaker, invade. If you're similar or they have something weird (e.g. a Blitz), stay on your side.
If you're similar/weak but they have no catch potential, ward deep. If you're weak and they're strong, ward quickly and prepare to get invaded.
or
on top of his blue buff camp right as the buff spawns. Watch he struggle as he gets destroyed by the buff.