Getting an Ensnaring Bridge blown up usually means you die on the spot, which makes having a way to copy it with the removal on the stack is a huge, huge deal
The primary way to get aggressive is by playing cards with job select, such as Dragoon's Lance, Monk's Fist, and Red Mage's Rapier
Only 3 Nissa seems kinda odd and I did play 4 for a very long time but it was kinda clunky for me in many occasions people play cards like Mystical Dispute, Aether Gust, Negate and drawing 2 or 3 Nissa often forces you to make unfavorable plays
That being said, Leonardo is extremely potent, particularly partnered with Raphael, which gives you a synergistic combat machine
Theres this great ethic programmers say, which is: programmers protest by writing code
Being able to fetch a basic land at instant speed later in the game, triggering Revolt or sacrifice synergies, makes this a glue card that holds artifact decks together