Forum:Mystic swordsmans lv 2 second effect

Hello, mystic swordsman lv2 says that when its first effect is activated, during the end phase, send it to the graveyard and special summon lv 4. do i have to do that or can i keep lv 2 on the field for an indefinite amount of time?24.46.183.194 17:08, May 14, 2010 (UTC)