Thankfully, though Akiri comes in as a 0/3, she gets bigger for each artifact you have in play, and can be granted evasion by any number of strong equipment like Trailblazers Boots, Fleetfeather Sandals, Embercleave, Shadowspear, and Tenza, Godos Maul
It can boost you in mana by a substantial amount if you can cast another ramp spell using the Dynamo mana, and its better evaluated along the lines of the Expertise cycle, or as a ritual of sorts
Depicting magical duels on blue cards is a difficult feat, and Ive always played my copy of Adam Rexs Weatherlight original because I love it, and because I actually think its awesome in Commander
That ability is a win-win in most situations
And those are the black cards