Activate Urza, Prince of Kroog by paying ({4} magic symbol) , creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
Activate Urza, Lord High Artificer's first ability by tapping the Training Grounds token, adding ({U} magic symbol) .
Activate Urza, Prince of Kroog by paying ({2} magic symbol) , creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
Activate Urza, Lord High Artificer's first ability by tapping the Training Grounds token, adding ({U} magic symbol) .
Activate Urza, Prince of Kroog by paying ({1} magic symbol) , creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
Activate Urza, Lord High Artificer's first ability by tapping the Training Grounds token, adding ({U} magic symbol) .