Caesar, Legion's Emperor

Whenever you attack, you may sacrifice another creature. When you do, choose two —
• Create two 1/1 red and white Soldier creature tokens with haste that are tapped and attacking.
• You draw a card and you lose 1 life.
• Caesar deals damage equal to the number of creature tokens you control to target opponent.

Arcane Signet

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

Sol Ring

Ruinous Ultimatum

Destroy all nonland permanents your opponents control.