The massive card flow that people want for free in Commander and multiplayer lead them to attack each other, but not you, especially since they don't have to spend a card to get the card draw, so for them, this is free card advantage over time for each foe that attacks each other, and you'll draw more than the card it took to cast him in one or two turns
New Leader cards and effects bring fresh strategies to shake up the meta
Its not quite as powerful as The One Ring, but in the right deck, it can do just as much work
Entwine (Choose both if you pay the entwine cost.) Instant Instant (CTRL to add secondary) Land Avengers Tower : Add
Its worth it to note that Dralnu was the only major archetype while Time Spiral was Standard-legal to make use of Think Twice
That means that they don't get exiled if they're blinked or bounced