Talisman of Dominance

{T}: Add {C}.
{T}: Add {U} or {B}. This artifact deals 1 damage to you.

Dimir Signet

Island

Swamp

Arcane Signet

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

Sol Ring

Truss, Chief Engineer

Whenever Truss, Chief Engineer enters or another creature dies, put a hack counter on Truss.
{2}, {T}, Remove X hack counters from Truss: Add or subtract X from a number or number word on target spell or permanent until end of turn. This effect can't reduce a number below 1 or a number word below one.