Qualo, Dragon Friend

Whenever a dragon enters the battlefield, you
may pay {3} to create a 2/2 token copy of it.
{4}{u}{r}{w} Create an emblem that says Whenever
a dragon enters your battlefield, you may pick
one: draw a card for each dragon on your
battlefield, deal one damage to any target for each
dragon on your battlefield, you gain one life for
each dragon on your battlefield. If no
dragons have entered the battlefield this
turn, sacrifice this emblem.