Summoner's Ring Specialist

Whenever you cast a spell, you may pay
{2}{r}. If you do, create a 2/2 red drake creature token with flying. It gains vigilance if the spell had {w} in its mana cost. Likewise, it gains looting if the spell had {u}, lifelink if the spell had {b}, haste if the spell had {r} and trample if the spell
had {g}.
When Summoner's Ring Specialist dies, dragon tokens you control lose all keywords except flying.