MArcomage

looks too powerful for a common... replaces, is "shity" on opps hand and lowers tower... a "better" trigger trap imo...
On the other hand, I think that alliance is a bit underrated over all... but this card is a real crusher (just my opinion)

Yes, is a mix between trigger trap and ambush.
Maybe I should add "no effect if matching card is rare".
or "no effect if matching card is recruits only" could be more interesting.

Fithz wrote:
... "no effect if matching card is recruits only" could be more interesting.

partly yes... but with some farsight in deck, it would be still a very good card... even without, it is always worth to try...

What about letting the guys tunnel out, where ground is easiest to break:
Replaces opponents cheapest cost card??

Both ways it's a great concept. Like that cursed amulet to toss around.