Arteus Velkalin

Spells you cast cost {1} less to cast.
Whenever a spell or an ability is countered,
create a 1/1 blue Bird creature token with flying.
If you cast that spell or activated that ability,
create two of those tokens instead.
{2}{u}, {t}: Target instant or sorcery card in your
graveyard gains flashback until end of turn. The
flashback cost is equal to its mana cost.