Edwin, High King of Elementia

As long as it's your turn Edwin, High King
of Elementia has first strike.

You may look at the top card of your library
any time, and you may play lands from the
top of your library.

{4}{r}{g}: Edwin gets +x/+x until end of turn, where x is the number of lands you control.
(Radha, Heart of Keld)