Ravnica Allegiance

Flames of the Raze-Boar | Instant | | Flames of the Raze-Boar deals 4 damage to target creature an opponent controls. Then Flames of the Raze-Boar deals 2 damage to each other creature that player controls if you control a creature with power 4 or greater. | Jason A. Engle

Rumbling Ruin | Creature | Elemental | When Rumbling Ruin enters the battlefield, count the number of +1/+1 counters on creatures you control. Creatures your opponents control with power less than or equal to that number can't block this turn. | Jakub Kasper