Island

Kros, Defense Contractor

At the beginning of your upkeep, put a shield counter on target creature an opponent controls.
Whenever you put one or more counters on a creature you don't control, tap that creature and goad it. It gains trample until your next turn. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Plains

Sol Ring

Azorius Signet

Simic Signet

Forest

Selesnya Signet

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Command Tower

Have

Getting

Don't Have

Kross Goad