Enivose the Reconstructor

Rebound {0}
When Enivose is on the stack, treat his abilities as
though he is on the battlefield.
Spells you cast have rebound {4}.
You have no maximum hand size.
Whenever a spell you control is countered, add
an amount of mana equal to the amount of mana
you paid to cast it.
{1}: Return target spell or permanent you control
to its owner's hand.