Omnath locus of Zendikar

Landfall- when a land enters the battlefield for the
first time create x 1/1 elemental tokens
Where x is omnath locus of Zendikar power.
If a second land enters all elementals becomes
lands in addition
to there type.
If a third land enters you may pay
{2}{b}{b} {ut{t} to do x damage to target player or perminate and gain x life where x is
The number of lands you control.