Beetle:
Beetle will move and attack if he can reach.
Attack: (1d20+3)[23]
Damage: (2d4+2)[8]

Zelandros:

Move Action: Stand Up. I have cover when I start this, so I'm not sure if you get an AoO or not,
Immediate Action: Abrupt Jaunt from N10 to L10
Standard Action: Cast Lesser Orb of Acid.

Attack Roll: (1d20+1)[19]
Damage: (1d8)[7]

Filling N10/N11 M10/M11 with fog.

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Free Action: Drop Prone in L10


It's like Whack-a-mole.

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HP: 7
AC: 11
Speed: 30
Position: Prone in L10
Immediate Magic: 1/4
Spells:
0th: 3x Acid Splash
1st: 1x Rapid Summon Monster 1, 1x Rapid Create Trap, 1x Lesser Orb of Acid