This means you can easily trigger infinite combat steps with enough creatures and Aggravated Assault
Aang's Iceberg Versatility is the name of the game for this enchantment, as it can be used either to earn an extra enters-the-battlefield trigger for one of your permanents, or to lock out an opposing permanent for as long as you need to in order to win the game
Both the players playing the combo (which is easy to tutor for also) and their local groups would get tired of it quickly enough that it would go out of favor pretty quickly
Olivia, Mobilized for War Olivia mobilized for war alongside the vampire army, and they flew hastily into battle
Honorable Mention #1 - Stalking Yeti We'll start our countdown by heading to this fun Coldsnap uncommon
You can set up the general context of the call ("I'm in a Magic game and I need someone outside the game to make a choice"), but you shouldn't explain anything that's going on in the game or what the consequences of their choice may be
