My first time DMing: Will these encounters be too difficult?

[cmbarona]

Update: I made the NPC. Thanks, Asmor, you've saved my game! (And saved me a headache!) And thanks for the affirmation, keterys! I'm good to go now!

Arkhan the Bodyguard Level 1 Elite Soldier (Leader)
Medium Natural Humanoid XP 200
Initiative +2 Senses Perception +0
Combat Leader aura 10; You and each ally who can see and hear you gain a +2 power bonus to initiative.
HP 21; Bloodied 10; surge value: 6
AC 18; Fortitude 16, Reflex 12, Will 16
Speed 5
Action Points 1
Longsword (Standard; at-will) ♦ Weapon
+7 vs. AC; 1d8 + 4 damage.
R Javelin (Standard; at-will) ♦ Weapon
Ranged 10/20; +6 vs. AC; 1d6 + 4 damage.
m Wolf Pack Tactics (Standard; at-will) ♦ Weapon
Special: Before you attack, you let one ally adjacent to either you or the target shift 1 square as a free action. +7 vs. AC; 1d8 + 4 damage.
m Hammer and Anvil (Standard; encounter) ♦ Weapon
+7 vs. Reflex; 1d8 + 4 damage; Hit: One ally adjacent to the target makes a melee basic attack against it as a free action. The ally adds 4 damage.
m Bastion of Defense (Standard; daily) ♦ Weapon
+7 vs. AC; 3d8 + 4 damage; Hit: Allies within 5 squares of you gain a +1 power bonus to all defenses until the end of the encounter. Effect: Allies within 5 squares of you gain 9 temporary hit points.
c Inspiring Word (Minor; encounter) ♦ Healing
Close burst 5; you or one one ally in the burst may spend a healing surge and gain an additional 1d6 hit points. Special: inspiring word may be used twice per encounter, but only once per turn.
c Dragon Breath (Minor; encounter) ♦ Acid
Close Blast 3; + 6 vs. Reflex; 1d6 + 1 damage.
Dragonborn Fury (only while bloodied)
A dragonborn gains a +1 racial bonus to attack rolls.
Alignment Lawful Good
Languages Common, Draconic
Skills Athletics +8, Heal +5
Str 18 (+4) Dex 11 (+0) Wis 10 (+0)
Con 13 (+1) Int 8 (-1) Cha 18 (+4)
Equipment chainmail, light shield, longsword, 4 javelins

And I formatted it so it all fits on one side of an index card!

 

[keterys]

That's amusing - my dragonborn warlord named Arkonn has those same powers

 

[cmbarona]

Well, thanks for the advice, folks. Turns out it went quite well. I got worried when the team used their dailies in the first two encounters, but they managed to survive. There was even a point where both the Warlord NPC and the Paladin went down, but the team was fine afterward. The new guy made things a bit difficult, though; he wanted to perform a lot of stunts and unusual combat actions (like dumping the liquor shelf of the bar on the ice elemental so he could be set on fire). And I had to fudge one or two die rolls. But they managed to get through everything. And most importantly, everyone had fun. Now to start planning for next week...

 

[keterys]

I wouldn't discourage the stunts and unusual combat actions - it'll make things more exciting for everyone, and keep the player happy if they do work okay.

And I'm glad it all went well!

 

[cmbarona]

Oh, I don't have a problem with the actions themselves. It's just difficult for me as a new DM to improvise DCs and decide the effects, especially failed effects.

For example, "I want to jump over the ten-foot elemental." Failed check (I forget the DC, but he rolled a natural 2). Do I make him waste his move action (as I did, saying he realized he wouldn't make the jump at the last second, causing him to freeze)? Should I slap on an OA? Maybe say he's engulfed in the ice, now taking ongoing cold damge and grabbed until he escapes? Etc.