Jade, Witch of Titans

+1: Target creature gets +3/+3 until end of turn.
0: Put a +1/+1 counter on target creature. Then, if its power is 5 or greater, put an additional +1/+1 counter on it.
-7: Create Becquerel, a legendary 8/8 white and green Beast creature token with Trample and "If this creature would leave the battlefield, copy it."