Blessing of Thalia

Enchant Creature
Enchanted creature gets +2/+2. If it is a human, it gains vigilance and lifelink and has "Whenever a human enters the battlefield under your control, put a +1/+1 counter on this creature."
{g/w}: Humans you control gain your choice of vigilance, or lifelink until end of turn. Activate this ability only once each turn.