For example, Gust Walker, Khenra Scrapper, Glorybringer, and Combat Celebrant, among more, would all be nice to slap free Kaldra Completant and Colososus Hammer's onto
Some of these cards were obviously powerful, but others just looked like regular MTG cards
Because decks running a lot of cheap mana ramp will be less reliant on their lands to cast their spells, those will tend to run fewer lands
While the previous set leaned heavily on flavor and factional lore, Ice Age introduced more impactful cards that shaped both casual and competitive play
See their post here: I find it a bit unusual that they decided to ban cards that were so popular and have been around for so long, but they offer a pretty good explanation in the article: its experimental