mtg urza commander deck Urza, Chief Artificer Affinity Metalcraft Artifact Creatures Magic – CommanderComplete create a 0/0 colorless Construct artifact creature token with This creature gets +1/+1 for each artifact you control Urza, Lord High Artificer •

(Equipment, Auras you control, and counters are modifications.) If the creature you control is an illegal target as Signature Slam tries to resolve but the creature you don't control is still a legal target, each modified creature you control (which may include the target creature you control if it's still on the battlefield) will still deal damage equal to its power to the creature you don't control

Personally, I find them too linear

--- Nick O, @nicrophiliac

After you roll a die, you may remove a +1/+1 counter from Xenosquirrels

Nothing you should try at all since it would damage real cards aswell to try it to violently