Yes, you can pay 3 mana to stick a counter back onto Iceberg before you untap, and sure, you can do cute things to reduce costs or repopulate your ice counters with Rimefeather Owl, Zirda, the Dawnwaker, and proliferate triggers
Some cards in the set grant additional bonuses or abilities when a player reaches max speed, creating a sense of momentum and progression throughout the game
Each creature you tap for a station will add a number of charge counters equal to the tapped creature's power to the permanent - meaning if you tapped a 5/5 to station, you'll add five charge counters
3 Leaf A Two-For-One Leaf stands out as the best supporter added in the Mythical Island expansion, thanks to her ability to effectively fold two cards into one
If theres one thing most Commander players are guilty of, its not running enough removal