Thunder Dragon ( F, PF, ETB ) - Dealing 3 damage to everything is a nice board clear for a 6 mana 5/5 dragon, especially if you can flicker it or give it death-touch in response to the trigger or just as a general effect
If this set ends up being widely opened and beloved, its going to get a heck of a lot of people excited about playing Modern
Its 10/10 worth of stats, spread across three bodies, plus even if its somehow blocked by enough creatures to kill it, youve still got 8/8 across four bodies to show for it (to say nothing of the two or three creatures it took to take it down)
3 is really asking how much you are willing to pay for this effect
These saga creatures have a final ability that exiles them and returns to the battlefield, front face up, before you have to sacrifice it
Skarrg, the Rage Pits Along the same lines of aggro support, Skarrg, the Rage Pits can also be a very helpful choice