Final Stand

As an additional cost to cast Final Stand sacrifice all lands you control and lose 10 life.
All creatures you control get +4/+4, double strike, trample and menace until end of turn. Damage can't be prevented this turn.
"As we fought the eldrazi that rampaged across Zendicar, we had though all hope was lost. Until the hedrons burst open and rained from the sky like rain, tearing the eldrazi apart. We had won, but how many of ours had died?"