So, hear me out: If you have both of these on the table, each time you deal combat damage to a player, that damage gets copied to other opponents as well by Kediss. But Breeches doesn’t require combat damage, any damage is enough. Also, Kediss states that the original source is also the source of the new damage. So, you can get three cards exiled in a three player game. Not that you can count that as three card advantage, since there is no way you can play all of them, but it will give you plenty of options.
The problem, of course, is that there simply isn’t enough pirates to make this work. Are we going to care about that? No. We’ll just be using plenty of subpar pirates to make the deck do something.
Yes, there is a vanilla 2/2 in there. I’m not claiming that these are especially good, I’m just going for an enjoyable deck. If you are looking for something more competitive, you should look somewhere else.
That’s just 36 cards, which means that we have to find plenty more. With the low curve and some treasure production this could easily be a deck that doesn’t need that many mana sources, but I would still just play 40 lands. With our commanders, that leaves room for 22 cards.
We need some evasion:
Maybe it would be a good idea to have some mass pump as well.
Some card draw and looting (or rummaging):
That leaves room for six other cards.
Well, there it is. Just add lands. This feels like very underpowered deck. Certainly there could be a time in the future when this could be a great deck, if you get enough pirates, but we are a long way off from that.