Redshift, Rocketeer Chief does not have summoning sickness.
Crab Umbra attached to
Redshift.
Notable Prerequisites
Redshift, Rocketeer Chief has power 4 or greater.
Steps
Activate
Redshift by tapping it, adding at least ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) that can only be spent to activate abilities.