(Well, they don't take any of Ice Knife's cold damage if they make the dex save)

Now the tiefling rises from the grave, eyes burning with an inner fire.

(He rolled a natural 20 on his Death ST)

The bard takes a shard of ice through the chest and lies gasping for breath.

(Was the tiefling within 5 ft of the sorcerer bc the monk and barb would also take ice knife damage and fail another save.)

(correction not the monk he moved but the barb took ice knife damage the first time right?)

The tiefling was no longer within 5 feet at the time. The sorcerer had moved away before he fell.

(Who's turn is it now)

Cool just checking & trying to visualize from the info given.  Thanks for clarification.  This is awesome!

The other team is taking some Dexterity and Death Saving Throws right now.

(Also, doesn't the sorcerer also get hit by the ice shard?)

Edit: oh

(On my turn I just need to know who's standing next to each other so I can kick multiple faces) 

The sorcerer and bard are standing together. The tiefling and monk are in different areas of the room.

(The whole team is up now? 😨)

Everyone but the monk.

Didn't the ice knife hit the sorcerer?  His AC is 9 according to character sheet.

The initial attack hit but he succeeded on his Dexterity ST.

Perry!

(so the sorcerer is still up)

Yes the sorcerer is still on his feet. 

The newly revived sorcerer conjures Sacred Flame and hurls it at Perry. Make a Dexterity ST.

Dex: 21

Perry flips away from oncoming flames and lands on his feet, fists whirling.

Take your action.