Visananuanau's Genesis

Create a number of 5/5 blue Elemental creature
tokens equal to X. If X is 10 or more, creatures
you control gain hexproof and indestructible
until end of turn. If X is 20 or more, you may
search your library for any number of basic
land cards and put them onto the battlefield
tapped, then shuffle your library.
"From the celestial forge, born of stardust and
dreams, the hand of creation touches every corner
of existence."