Since these are mana and card free after playing them the first time, its really nice
They are part of one of the cheapest competitive decks in the Pioneer format, in this case Mono-Blue Spirits, which costs just a bit over $100 to complete
A lack of red or green makes me slightly suspicious as it cuts off easy access to the wombo-combo of double strike and trample, but tricks and equipment that grant flying probably make up for that
While this may seem rather niche due to Salamanders being an incredibly rare creature type, at the beginning of your end step, each player who controls the least number of creatures creates a 4/3 Salamander token
These are, again, powerful cards that have seen some constructed play, but not much.