Cast Gorilla Tactics only during your combat step after blockers are declared.
Switch an attacking creature with a non-attacking creature. (If the creature that was attacking was blocked, the new attacking creature is blocked by all creatures that blocked the original creature.)
For Challenge # 008. Working with the Gorilla Strategist theory. Strangely, this spell does not seem to change which creatures are tapped and untapped. But it's the simplest form of a confusing ability, so I think I'll stick with it. Originally wanted to trade out the entire team for the entire team, but that probably would have been to much to ask from players.