Reliquary Tower. Usually utility lands are great. They do something and they give you mana, and usually the colorless factor isn't too important, right? But I would argue that you need colored mana more often than you need a greater than 7 card hand size. If you regularly draw tons of cards and regularly have a hand size over 7, like if that is what your deck does, then absolutely run this, but otherwise I don't think the colorless mana is worth it. Like there is no reason to run it in almost any deck without blue, yet it is such an auto include in most people's decks.
Chromatic lantern is one that bothers me sometimes. Only in 4 or 5 color decks. Two and 3 color (and especially 1 color) decks should never ever run this card. I mean just run
darksteel ingot. I ran it in
Sen Triplets because, well, read the damn card, but that is the only 3 color deck I can see this in. People play it because then you don't have to worry about which lands tap for what, but what if you carelessly tap all your mana except that evil
reliquary tower, thinking you could tap it for blue and
stifle Krenko's ability, but then someone
Krosan Grip's your
chromatic lantern. No more
stifle for you. So the benefit you get from it isn't even real because you have to keep track of your mana fixing just in case they destroy it. In 3< color decks, your mana base should be solid enough without this card.
Helm of the Host. It is a 9 mana investment to copy one card, which is most likely your commander. I mean, yeah having two commanders is usually
better than one, but for 9 mana? Cast freaking
expropriate. If you would not run
sakashima the impostor, do'nt run
Helm of the Host.
Let's start a fight.
Sunforger. First off, it does not say instant or sorcery. So
. Second, if you are running
sunforger you are already losing since you're in boros, and you have to dedicate 10+ cards to the instant under 4 cmc slot to fetch with
sunforger. Just because you are in red/white doesn't mean you have to run this card. I think you should only run it if you were running those 10+ instants under 5 cmc already.