Path to Judgement

Enters the battlefield Tapped.
{1}, {t}: Add {r}. If this mana is spent on a
Creature, that creature gains Haste until end
of turn.
{r/w}{r/w}{r/w}, {t}: Target creature gains First
Strike until end of turn. Exile Path to Judgement.
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Welcome, little lamb. I've been expecting you.