Simic Elemental

When Simic Elemental enters the battlefield,
you may put a +1/+1 counter on target creature
if {g} was spent to cast Simic Elemental.
When Simic Elemental enters the battlefield,
return another target creature to its owner's hand
if {u} was spent to cast Simic Elemental.
Evoke {g/u} (You may cast this spell for its evoke cost.
If you do, it's sacrificed when it enters the battlefield.)