Siege Camp

You may only cast Siege Camp during your postcombat main phase.
Defender
Whenever another creature attacks, its controller
may have it fight Siege Camp instead. When
Siege Camp dies, Marshall gets 2 Experience
Counters and the player whose turn it is creates
two cololess 1/4 Siege Mercanary creature tokens
with "At the beginning of each players upkeep,
each opponent takes 1 damage."