Kandrex, Myr Patriarch

When Kandrex, Myr Patriarch enters the battlefield, sacrifice all lands you control. You may draw a card for each land sacrificed this way.
Creatures across all hands, libraries and graveyards lose all creature types except Myr.
Myr you control have infect and "{p/c}: Create a token that's a copy of target Myr. You draw a card and lose 2 life. Activate this ability only if you control no lands."