The voice fades and the room you are in convulses. It shatters while collapsing in on itself. A strange implosion of light and objects rushes past too fast for you to comprehend. When it stops you are in a new place.

The area is a flat open plain in daylight. The bleached-looking strangely colored grass is almost up a normal person's knee. There is no sun that you can see. Your opponent is standing right in front of you.

Roll for Initiative.

Leann initiative: 19

Oily initiative: 20

Leann draws her longsword with a hiss of metal. She strides forward and slashes at her opponent.

Longsword Attack: 17 Damage: 5

Xarythas takes the blow to the chest, he now realizes he'll have to participate in the waste of time.

Casting False Life : 8

Round 2

Leann sheathes her sword and extends a hand towards her opponent.

poison spray

DC 13 Con save for none or take 12 poison damage.

10

Critical save

Xarythas avoids the poison and swats the spray away like a pesky fly

He conjures Ice Knife to return an attack

To Hit 23    ... if a hit take 3 Piercing damage 

And regardless of hit, DEX 12 check required. If fail take 7 Cold damage

Xarythas then casts Misty Step to put himself 30ft behind the foe

A stiff wind shunts the Poison Spray away from Xarythas. Xarythas launches an ice shard past Leann that explodes.

OOC: Before the next round Leann needs to post the Dex save for Ice Knife.

After save Round 3

he cannot cast misty step after ice knife he will also need to save vs ice knife as he is in melee with leann

Misty Step is a bonus action, so that’s allowed yeah?

And Ice Knife doesn’t say “Self” in any of details, would that also be correct?

you are a creature within five feet of your target. it is an area of affect spell, at least for this part, and you are in that area.

for misty step, you cannot cast a leveled spell and a bonus action spell on the same turn. as it is a level 2 spell, how are you casting it anyway?

Misty is a BS but doesn’t use a spell charge, looks to be a once-per-rest

check my character sheet, I haven’t changed anything from setting us as a level 1

Xarythas roll to save Ice Knife shard save.... 20

Can confirm Misty Step is part of this type of elven race, and my character is level 1 flat

https://www.dndbeyond.com/races/elf#EladrinVariant

(I tend not to look at other player's characters unless I have to, especially in this style of game.)

Here are the rules, from the PHB, on bonus-action spells:
A spell cast with a bonus action is especially swift. You must use a bonus action on your turn to cast the spell, provided that you haven't already taken a bonus action this turn. You can't cast another spell during the same turn, except for a cantrip with a casting time of 1 action.

Since the elven race you have specificley says you can 'cast' the misty step spell, you have to follow the above restrictions on spellcasting bonus-action spells. If you want to cast it, you can only cast cantrips for that turn. As you already have cast a non-cantrip, you cannot cast the misty step.

Should I assume you stay put then?

Leann Dex Save: 11

Noted! 

Xarythas is still within 5ft of Leann

Shivering from the cold, Leann sends another puff of poison at her opponent, then draws her longsword once more.

poison spray

DC13 Con save or take 2 poison.