Heron's Grace Champion is the same exact way
Since Karlach gives all attacking creatures first strike as well, this makes your creatures even better attackers since they'll have a lower chance of dying in combat
Targeting a creature with an ability was trivial, and with Springheart Nantuko backing Nadu up, you had a constant source of new creatures to target with abilities that cost zero mana to essentially draw your entire library
But what do you think of the rankings
Cultivate, Natures Lore, and Kodamas Reach are three iconic ramp spells that are also printed in Secret Lairs
As a part-time enchantress aficionado, I had certainly done my paces with Cage of Hands in the past, but rarely did I consider enchantments that I would want to be placing on to my own creatures