If you would put one or more counters on a permanent or player, put twice that many of each of those kinds of counters on that permanent or player instead
In the mirror or against GB midrange, setting up Karn behind a mass of tokens or after Settle the Wreckage attacks opponents on an angle they arent really prepared for
The appeal on this one is going to be more for Magic diehards than anyone else, so it's not going to be essential for every planar deck, but it's going to elicit plenty of reactions when you land on it
There are some flashy cards in Iconic Masters
For example, if your commander has the ability to gain a lot of life, you might build a Commander deck with cards that benefit from maintaining as high a life total as possible, and focus on out-enduring your foes - or you might use your life total as a resource, burning through it to fuel powerful abilities and relying on your commander to keep yourself from succumbing