UngeheuerLich
Legend
No, when dragon gets into 20 squares is not readiable IMHO... especially when a human should guess height (humans are very bad at this)Ok, but then the PCs are not allowed to use "When the dragon gets within 20 squares ready actions.
I don't see that the DM must do something in this situation.
If a fight with the dragon makes sense considering the location and actions of the PCs he is not required to make it defeatable for the party.
The players are responsible to overcome the challenge. And when they are not prepared they should flee and regroup.
The DM should not dumb his monsters down and play them like they would be complete tactical morons just so that Mr. "I only need a melee weapon" fighter can hit it.
Problem with 4E is that the powers are so restricting. Even when the fighter gets a bow he would do rahter low damage to the dragon (if he can even hit it as Dex won't be his primary stat).
And yes, no encounter must be beatable. But it should not be unreasonanble. As i reasoned above, having an unbeatable "random" encounter which spells certain death is like using DM´s fiat in a bad way.
I don´t think the power system of 4e is the problem here, but the restricted nature of multiclassing and scaling of monsters and PCs (main stats of PC´s are rising too fast vs non main stats)