Talk:Trinity Force/@comment-1120494-20140821105748/@comment-10428734-20140822192829

The cooldowns of abilities start on cast (as soon as you press/click, even before the cast animation) while the cooldown of Spellblade only starts on-hit (when your basic attack actually deals damage, after the attack wind-up).

This means that there is a short delay between the two. Depending on your AS (higher AS = faster wind-up), it can easily make a difference of 0.5 second, or even more.