Conflux — Rare
Creature — Goblin Warrior
, Sacrifice a land: Put a +1/+1 counter on Goblin Razerunners.
At the beginning of your end step, you may have Goblin Razerunners deal damage equal to the number of +1/+1 counters on it to target player.
Finding themselves in a new and unexplored world, they immediately set it on fire.