Summon the Knights

At the beginning of your Upkeep, create a 2/2
knight creature token with Vigilance.
At the beginning of your end step, if you control
ten or more knight tokens, sacrifice all Knight
tokens you control and you gain life equal to the
amount sacrificed this way.
{1}{w}, sacrifice five knight tokens: search your
library for a knight and put it on the battlefield. Shuffle your library.