Romandra, Watchful Strixuary

{t}: Add an amount of {w}, {r} or {g} equal to the
number of Elves you control.
{t}: Add an amount of {u} equal to twice the
number of owls you control.
Whenever you cast an Elf creature spell,
create a 1/1 Owl Creature Token with Flying.
In Romandra, every newborn elf is taken to the
Mother Nest and left to survive alone for 30 days. If
they survive, an owl will choose the elf to bond with
and become their lifelong companion.