Circle of Pure Form

You have begun to love your Wildshaped form, and thus delve into secret techniques of great druids to allow you to stay Wildshaped and perform regular tasks, along with increasing your Wildshape's flexibility and decreasing costs with weaker creatures.

Weakling Wildshape

At 2nd level: Your Wildshape has X times Y charges, where X is the max CR you can Wildshape into, and Y is how many times you can Wildshape per Long Rest. When you Wildshape, take the CR of the creature you are Wildshaping into (0CR creatures are counted as 1/8CR creatures for this use) and subtract it from your Wildshape Charges. Regular Wildshape Restrictions remain, but you can ignore them, by using extra charges for each speed you gain that you wouldn't have access to normally; Flying must use double charges and Swimming must use 1.5X charges.

If you do not have access to a CR of a creature yet, you may use extra charges to wildshape into that creature. You can use 3/4 of a charge to wildshape into a CR 1/2 creature. You can use 2 charges to wildshape into a CR 1 creature. These extra costs are not used if you have access to that CR creature in the regular druid wildshape table.

You can never wildshape into a creature above CR 1 except by external means (E.g. magic item). If a cost to wildshape has more than 2 decimal places, round up.

At 2nd level: You may Cast "Speak with Animals" while Wildshaped as a Cantrip on someone (Making them recieve the benefit of the spell) X times per day, where X is your Druid level divided by 2

Sizable Creatures

At Level 3: Once per Wildshape, you may cast the spell "Enlarge/Reduce" on yourself, at no cost, and you must declare which of the two effects of the spell you will use (Either enlarge or reduce). The effect of the spell lasting as long as the wildshape lasts.

However, whenever you use this, you must roll a D20. On a 1, 2 or 3, the spell is used the opposite way twice, and you cannot un-wildshape until it would be removed by regular means (Such as dropping to 0 hit points, or enough time passing).

On a 19 or 18, you can choose to change between the normal size of the creature you are wildshaped into, or one size above or below your wildshape, using your action to do so.

On a 20, you recieve the same benefits as a 19 or 18, but up to two sizes different, and it only costs a bonus action to change sizes.

Shared Experience

At 6th level: When wildshaping, you may choose up to your druid level, divided by 2, creatures that you can see within 10 feet of you. When you wildshape, if the target is willing, they will wildshape into the same creature as you, costing you half the wildshape charges it costs you. If they are not, they must save a wisdom saving throw, the DC equal to your spell save DC, else wildshape into the same creature as you, however, this costs you the full amount of wildshape charges. 

The creature cannot exit wildshape until you choose for them to, you exit wildshape, or the regular "Leaving wildshape" circumstances happen.

Creatures do not gain the benefits of "Arcane Beast", even if you have that feature, But do receive it if you have "Upgraded Arcane beast" and you choose so.

If you use "Sizable Creatures" while others are wildshaped by this effect, they simply change as you do, they do not roll their own d20, nor are able to try to make the save for "Enlarge/Reduce". If you roll a 20, 19 or 18, and change size, they change as you do, rather than using the high roll to be able to change themselves. (e.g. If you roll a 20, and use a bonus action to grow by 2 stages, all other affected by this effect do too. They cannot use their bonus action to change, however. The same idea can be applied to 19 and 18).

Arcane Beast

At 10th Level: You can cast spells while Wildshaped, even Cantrips, however, they use a slot one higher than their actual value to cast. (E.g. Cantrips take a 1st level slot, 1st level slots use a 2nd level slot to be cast, etc.) You do not gain the benefits of casting these spells at a higher level unless you cast them at a higher level on top of the use cost (A 1st level using a 3rd level slot counts as using it at a 2nd level). You may not cast a spell if you cannot pay the upcasted cost, or if it is 9th level. You can cast spells that require Verbal or Semantic components, but cannot use material components or start concentration, and, unless through another effect, creatures cannot understand you by default (e.g. suggestion will not work unless you use speak with animals on the target)

If you, or anything affected by your wildshape have either: Ki points or a feature that interacts with spell slots (e.g. Divine Smite), you may use them, but at a cost of double ki points (unarmed strikes use the monk's modifier, not the attack of the creature) or by upcasting in the same way you do. If a sorcerer uses a "subtle spell", they do not need to use this upcasted cost. If an artificer has "arcane armour", the DM may decide if it changes shape to fit the new form or not. Any other features that may be affected by this should be questioned by the DM.

This feature upgrades at 20th level: The upcasting spell cost for Arcane Beast is removed, and you may use material components that you absorbed into your wildshape.

Other creatures wildshaped through "Shared Experience" gain the effect of "Arcane beast" if you choose. They do not gain the effect of this Upgraded Arcane Beast, however.

Vocal Cord Manipulation

At 14th Level: Wildshaping into creatures with CR 0 costs no Wildshape charges, but is only free the first X times per day you Wildshape into them, where X is your Druid level divided by 4.

When Wildshaping; you can declare that you are going to alter the Wildshape. If you do, while Wildshaped: You can speak normally as a creature of CR 1 or higher, and said creature must have a mouth, but you can only attempt to mimic the sound of the crearure you wild shape into (E.g. you can no longer use a Tiger's roar while Wildshaped, only attempt to make it with your normal voice)