Axedwarf Ambush

Axedwarf Ambush has flash as long as it's cast
before your opponents Combat phase.
Before the beginning of either players combat
phase put X 3/1 Red Axedwarf Tokens with Firststrike and Haste onto the battlefield under
your control, where X is equal to the number of Mountains you control.
Sacrifice a Mountain: Deal 6 damage to target creature or planeswalker.