
(Last item can be anything, but for most of these, a fifth sterak will work better than something else.)
It's recommended to bring at least 2-11% critical chance from runes.
The +25% base AD stat stacks on top of itself.
The UNIQUE shield passive Does not stack. However, the +25% will stack on top of all other +25%'s from every sterak's gage.
The trinity force does 200% of your increased total.
Example: You have two sterak's gages, so you have 62.25% increased base AD instead of 50%. Trinity force would get a 124.50% increase.
Characters who have an 'on basic hit' effect such as Caitlyn's effect from W or E do exceptionally well, and others who increase their next basic attack do just as well, or better.
Renekton W will cause you to do two to three total hits of this increased trinity force (but will exclude critical chance), and add a stun.
Mordekaiser Q if timed correctly to apply the effect on the third hit and you get lucky with a critical hit at full build, he will hit for over 6000 damage.
Additionally, this increased damage is applied to all things you use the spellblade on, including structures.