MArcomage

Compared to Scepter of Summoning, this is cheaper, has two well fitting keywords and causes 7 - 12 damage. I think balancing is in order.

Summons rare Siege.

14 R
Enemy tower: -5
Enemy wall: -7
Summons rare Siege

Fair enough, it doesn't summon a card from your deck, but a deck where this card is useful is sure to benefit from rare Siege cards.

Aside from this, it's superior to scepter of summoning in many ways. I like the idea, but balancing needs to be done.

I'm confused. You added two keywords to what was already agreed to be too powerful?

It should do 1,1 damage to tower and wall just to make use of the Siege keyword while summoning the Rare as its primary function. Soldier keyword makes this most useful in a Soldier deck to be refunded recruits with keyword effect.

Upgrade.