As if that wasn't enough, Missy also forces your opponents to make a choice on your end step, they either take damage equal to the number of artifact creatures you control, or you draw a card and activate the chaos ability of the plane you're on if you're playing Planeschase games
We also have lots of support pieces like Roost of Drakes to make tokens (and also kick!), Forgotten Ancient to refill Verazol with counters, Hadana's Climb which turns Verazol into an evasive 1-shotter, and Twinning Staff which lets us get an extra copy of our copied spells
Look for the earliest and safest opportunity to play her, and take your shot
The Speed Demon is a flying, trampling 5/5
Cards OK, I guess
Not dying to every pinger, small end of every dividable burn, being able to attack into a utility dude or 1/1 token and being able to block said creatures individually don't seem like much, but taken cumulatively, these things happen all the time