Korsvand, The Untamed Sea

Whenever a player casts a spell, copy that spell.
You may cast the copy without paying its mana
cost.
Shroud, islandwalk, protection from black.
{1}{p/u}{p/u}: Regenerate Korsvand.
{u}{u}: Korsvand gains reach until end of turn.
{u}: Korsvand gets +1/+0 until end of turn.