Clipse, The Corrupt

When Clipse, The Corrupt enters the battlefield pay {x}. If you do then take over artifacts where the total mana value is lower or equal to {x}. {x} Cannot be less than {2}.
{t},{b}— Target opponent takes control of Clipse,
The Corrupt. And you create X treasure tokens. Where X is equal to the mana value of all equipment and artifacts that player controls.