Solar Overexposure

Enchanted land has shroud. (It can't be the target
of spells or abilities.)
Enchanted land has "{2}{r/w}{r/w}, {t}: You can't use
this effect the turn after you used it last. You can
put a red/white hybrid 5/4 Crimson creature
with haste, mentor, and "When this creature
enters the battlefield, put a +1/+1 counter on
each red and white creature you control." onto
the battlefield. Only after these effects resolve,
Add {w} or {r} to your mana pool."