{R}: Inferno Titan gets +1/+0 until end of turn. Whenever Inferno Titan enters or attacks, it deals 3 damage divided as you choose among one, two, or three targets.
2010-08-15
You divide the damage as you put Inferno Titan's triggered ability on the stack, not as it resolves. Each target must be assigned at least 1 damage. (In other words, as you put the ability on the stack, you choose whether to have it deal 3 damage to a single target, 2 damage to one target and 1 damage to another target, or 1 damage to each of three targets.)