In 5e you only have one reaction per round. So yes you can Counterspell a Counterspell, however you can only do so once, and you will have no other reactions until the start of your next turn..
Besides, can you counterspell a counterspell while casting?
You can't counter Counterspell on your own turn by using your Reaction to cast Counterspell. You CAN use your reaction to cast Counterspell, but you will lose the original spell you were casting and the result would be the same. The only difference being that you wasted 2 spell slots instead of one.
Furthermore, can you counterspell a Rakshasa? counterspell is a 3rd level spell that targets the rakshasa, if the rakshasa does not want to be affected by the spell then he will be immune. Yes, unless the counter spell is cast at 6th level or higher.
In this regard, can you counterspell a counterspell 5e sage advice?
My quote is the official Sage Advice saying that yes, a player can cast fireball and counterspell on the same(his) turn. Edit: You can counterspell a counterspell if you cast a fireball and no bonus action spell. A hand which is currently being used to cast another spell is not free.
Can you counterspell shield?
Yes if you have a reaction to use. If M attacks A, A uses Shield (reaction), N uses Counterspell on A's Shield (reaction), B uses Counterspell on N's Counterspell (reaction), O uses Counterspell on B's Counterspell.
Related Question Answers
Does Jack of all trades affect counterspell?
The check for the counterspell is an ability check of the type of your spell casting stat. This means that the maximum bonus a character can get (unless they are a bard with Jack of All Trades), is +5.Can you counterspell a Planeswalker?
yes. any spell or ability that allows you to counter an activated ability can be used to counter a planeswalker ability. e.g. Stifle. a normal counterspell can not counter activated abilitys though.Can you counterspell contingency?
No, contingency won't work: The spell to be brought into effect by the contingency must be one that affects the character's person (feather fall, levitate, fly, teleport, and so forth) and be of a spell level no higher than one-third the character's caster level (rounded down, maximum 6th level).Can you cast Misty step and another spell?
You can't cast another spell during the same turn, except for a cantrip with a casting time of 1 action. Secondly, the Fog Cloud spell makes an area heavily obscured. Misty Step lets you teleport to somewhere you can see - you can't see anything if you're in a Fog Cloud, so you can't use Misty Step at all.Can you counterspell a subtle spell?
No, you can't counterspell spells with no components Subtle spell is meant to protect against counterspelling. Subtle Spell is meant to protect a spell w/o material components from counterspell, since you can't see the casting.Can you use reactions on your turn?
It is possible to get use a Reaction during your turn. For example, your character casts a spell and a foe counters it with counterspell. You can use your Reaction to cast counterspell to counter their counterspell, all on your turn.How long is a turn in D&D?
A round represents about 6 seconds in the game world. During a round, each participant in a battle takes a turn. So, according to the Player's Handbook, a turn is at most about 6 seconds long, because a round is comprised of many turns. Beyond this breakdown, it's dangerous to think too hard about what is happening.Can you counterspell a magic item?
Yes. counterspell can counter spells cast from spell scrolls, so if the item says it casts a spell, that spell can be counterspelled as well. Some items have magical effects that are not explicitly spells. Counterspell is for spells, not any and all magical effects.Can ice knife be twinned?
Ice knife is an attack roll spell that can only be cast on one target. Once it hits it deals piercing damage and then forces a dex save on all creatures at 5 feet from the point. Usually, spells that can target more than one target can't be twinned, but Ice knife technically only targets one.Can you cast shield on someone else?
A reaction is an instant response to a trigger of some kind, which can occur on your turn or on someone else's. Therefore, yes, you can cast Shield as a reaction if you provoke an opportunity attack on your turn.Can you cast somatic spells with a shield?
You can, you just need the other hand free, or the War Caster feat, which allows you to cast spells with somatic component while wielding shield and weapon.How do you use the shield spell in 5e?
Its a reaction to the enemies action of targeting you with their attack. You should just say, "The attack hits (being as descriptive or not as you want to be)," and the player says, "I use Shield! My AC goes up to X!" Then you determine if the attack still hits or not based on that new AC. 
