Just like Han cut open his Tauntaun to save Luke, you too can sacrifice this card to save another creature
The card also has potential in the different red ramp decks in the format, be they Jund Wildfire or classic Gruul Ramp
For example, Esper Sentinel can be dropped on turn one, and as you attach Equipment later you'll be more and more likely to draw cards every turn
Etali is a 6/6 for 6 mana, already a fair cost, but if it sticks to the board and attacks, the value it generates greatly outpaces what you paid
If either the opponent or the permanent you control becomes an illegal target by the time Iroh's second ability resolves, the ability does nothing and you cannot choose to have the opponent gain control of the permanent
Conclusion There you have it, my friends, my top 10 picks for the best adventure cards in Magic: The Gathering