Bird Barbarian

Haste
When Bird Barbarian enters the battlefield, put a rage
counter on all red creatures you control.
{t}: Put a rage counter on target creature.
{t}: Remove a rage counter from target creature:
• Put a +1/+1 counter on that creature.
• That creature gains haste until end of turn.
{r}{t}: Remove a rage counter from target creature:
Regenerate that creature.