I've been playing a little Splinterlands recently, and I finally managed to hit on a battle where the Amplify ability came in handy, and I actually won specifically because of it.
The battle in question is this one, featuring one of my my favourite summoners from the Life Splinter, Raith.
This ability gives plus one to thorns, return fire and reflect, and man is it great when it works, as below!
I love my passive victories!
So I won with hardly even landing an attack!
Amplify worked a treat here because of my opponent's using FIVE melee cards, and all of my units having both thorns with amplify, meaning my opponent's monsters were taking an additional point of damage each every time they landed an attack.
And when one has shields with repair, this is a powerful combination.
Of course it was very silly of my opponent to play so many melee cards with a thorns ruleset!
Summoner - Raithe - for amplify, shield and void shield