Tessith, Staticfroce

+2: Tessith, Staticfroce deals 1 damage to each opponent. If you control an artifact, Tessith, Staticfroce deals 1 damage to target creature.
-3: Target creature gets +3/+0 and gains first strike and haste until end of turn.
-10: Tessith, Staticfroce deals 20 damage to each of two target creatures. Creatures dealt damage this way lose deathshield until end of turn.