This alone is not bad at all for MTG 's Commander format, be it casual or competitive, as Blue comes with a lot of good tools to counter opponents' spells, draw cards, and generally control the battlefield
For example, if the target historic permanent card is an artifact card (but not a creature card) and you control March of the Machines ("Each noncreature artifact is an artifact creature with power and toughness each equal to its mana value."), it will enter with two additional +1/+1 counters on it because it will be a creature on the battlefield
Release Date Whispers in the Well is slated to be launched in local game stores on Friday, November 7
I think aiming for twenty cards in this case should suffice and be especially easy because, much like my philosophy in Shattergang Brothers, I want to showcase the creature type and not a specific effect
Banding is a similar concept: when your creatures form a band, they can all attack or block together