Urza, Chief Artificer (Extended Art) Finish:Nonfoil {T}: Prevent all combat damage

{T}: Prevent all combat damage that would be dealt by target attacking creature this turn

Exile target card that's an instant or sorcery from your graveyard

If you don't

Reconfigure {2}{U} ({2}{U}: Attach to target creature you control

remove this creature from combat and tap it

Urza, Chief Artificer (Extended Art) Finish:Nonfoil {T}: Prevent all combat damageAffinity for artifact creatures (This spell costs {1} less to cast for each artifact creature you control.) Artifact creatures you control have menace. At the beginning of your end step, create a 0 0 colorless Construct artifact creature token with "This token gets +1 +1 for each artifact you control."