In my play group, there are A LOT of Dragon decks (The Ur-Dragon, Miirym, Sentinel Wyrm, Morophon, the Boundless, Tiamat), so considering Steely Resolve from a distance is a necessary process here
The third ability of Aang's Iceberg allows you to sacrifice Aang's Iceberg as the ability resolves, not as a cost to activate the ability
Goldbug is a very interesting commander to choose because both of his sides are incredibly attractive to a tribal deck
Mangara shines the most in multiplayer Commander format, as there is a higher likelihood that one of your many opponents will double spell on their turn
So shes a niche pick, but seeing Sokka and Kataras grandma waving goodbye with her back to the sunset is a bit comical for what winds up being an uber-useful Magic card
7 Hauntwoods Shrieker A Must-Kill Threat With Delirium Synergy Duskmourn has plenty of kill-on-sight targets, and Hauntwoods Shrieker is among the best so far