Isolated Watchtower

{T}: Add {C}.
{2}, {T}: Scry 1, then you may reveal the top card of your library. If a basic land card is revealed this way, put it onto the battlefield tapped. Activate only if an opponent controls at least two more lands than you.

Judge Gift Cards 2019

Treasure Chest

Commander 2018

{T}: Add {C}.
{2}, {T}: Scry 1, then you may reveal the top card of your library. If a basic land card is revealed this way, put it onto the battlefield tapped. Activate this ability only if an opponent controls at least two more lands than you.

You can activate Isolated Watchtower’s ability if you control more lands than an opponent, as long as at least one opponent also controls two or more lands than you.