But the sheer fact that you can double your power instantly on siege row with a siege based deck with a few Commander's horns thrown in along with infantry that double when placed with like cards, followed by a few spy cards, 5 hero cards. I can't count how many times this strategy has saved my ass, almost every single one of my hands has a commander's horn alongside Siegemaster Foltest's ability.
You get the same ability with a commander's horn card, but the card gives you the flexibility of using it on any row, and with a full NR deck your melee and ranged rows will generally be your highest scoring ones anyway. Also since you can have multiple horns in play, there's no downside to having a few in your deck to increase draw chances, and they're useful every time they're drawn.
On the weather front, if you were to take multiple clear weather cards instead of the Foltest ability, then they can't be stacked in a single round, and they aren't useful every time they're drawn (or even most times they're drawn).
Those are the reasons why I always go with Foltest's clear weather ability, and I take no weather cards whatsoever (even against Monster decks).
