You can put a land card from your hand onto the battlefield.This is different from the special action of playing a land, which can only be done on your turn.
"Proc" stands for "Programmed Random OCcurance". It does not even vaguely apply to anything Magic cards do. Don't use it.
Level 1 Judge as of 09/26/2013
Zammm = Batman
"Ability words are flavor text for Melvins." -- Fallingman
Or this one! Or this one!
The Basic rulebook, read it! A lot of basic questions are answered there!
How to autocard :
Type [c]Black Lotus[/c] to get Black Lotus.
Type [c=Black Lotus]The Overpowered One[/c] to get The Overpowered One.
Level 1 Judge