Natural Affinity + Ezuri's Predation

Natural Affinity

Ezuri's Predation

How it works

1. Cast Natural Affinity by paying 2, causing all lands to become 2/2 creatures in addition to their other types.
2. Cast Ezuri's Predation by paying 5, creating a 4/4 Phyrexian Beast for each creature and land your opponents control, and then causing a Phyrexian Beast to fight each of those creatures and lands.
3. Each land opponents control will die as a state-based action due to having 0 toughness, as will each creature opponents control that had toughness 4 or less.