However, the populated army token won't automatically gain +1/+1 counters, so you'd need an anthem or some other way to give it toughness or it dies immediately
Creatures don't even need to actually deal combat damage for Hopper's ability to trigger, they just need to have been declared as attackers letting you Maze of Ith or Labyrinth of Skophos a creature to get them out of harm's way but still get that clue
If you hit another copy of Garruk, keep the newest one, use it to untap Nykthos and the land that has Utopia Sprawl on it (that Genesis Wave kindly provided for us), and do the Wave once more
For one red mana you can deal three damage to any target, making it the first burn spell many players think of first
On top of that, color can be used in more creative ways when artists dont have to worry about capturing something in a more photorealistic light