Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)
First strike (This creature deals combat damage before creatures without first strike.)Protection from white (This creature can't be blocked, targeted, dealt damage, or enchanted by anything white.)
Serrated Arrows enters with three arrowhead counters on it.At the beginning of your upkeep, if there are no arrowhead counters on Serrated Arrows, sacrifice it., Remove an arrowhead counter from Serrated Arrows: Put a -1/-1 counter on target creature.
First strike (This creature deals combat damage before creatures without first strike.)Protection from black (This creature can't be blocked, targeted, dealt damage, or enchanted by anything black.)
Whenever Goblin Vandal attacks and isn't blocked, you may pay . If you do, destroy target artifact defending player controls and Goblin Vandal assigns no combat damage this turn.
TrampleGoblin Mutant can't attack if defending player controls an untapped creature with power 3 or greater.Goblin Mutant can't block creatures with power 3 or greater.