Alvia's Wyrmling

Flying
{1}{r} , Alvia's Wyrmling gains +1/+0 until end of
turn.
Whenever Alvia's Wyrmling enters the battlefield,
choose a player. Creatures under target player's
control can't deal combat damage to Alvia's
Wyrmling. At the beginning of chosen player's
upkeep, they may pay {1}. If they do, they create a
treasure token.