Decisive Blow

As you cast Decisive Blow you may Blood
Burst 2 up to two times. (You may pay 2 life to
Blood Burst 2. Then apply the effect accordingly. If
you Blood Burst X times. Apply the corresponding
effect and the effect of all previous Blood Burst you
paid.)
Target creature gets +2/+0 until end of turn.
If you Blood Burst one time, that creature also
gains first strike until end of turn. If you Blood
Burst two times, that creature also gains indestructible until end of turn.