Artemis's Favor

Strive - Artemis's Favor costs {g} more to cast for each target beyond the first.
Target creature gets +2/+2 and trample until end of turn. Draw a card.
Artemis, maiden beloved! the air is distraught with the spears, And whither doth destiny drive us, and where is the goal of our fears?
-Aeschylus, The Seven Against the Thebes