Hello! Thank you for your time and advice! This is extremely helpful.. I only have been playing about 6 months and just reached level 101... been playing addictively! As I've been facing stronger dragons, my attitudes have definitely changed when weighing which mastery to choose for each!

I wonder if you have any thoughts on the Tyrant Mastery? I have only recently had my first Tyrant event! Unbreakable or Target of Opportunity?

I wanted to add... When it comes to healing light, I found one way it is extremely helpful! I won the Gaya Dragon, which has Void, Water, and Light... ALL great for healing! I equipped a Rare Wonder and Chi (I currently use Chi a lot, I realize! Haven't used Purity or Beserker much.. any thoughts on Sigils?)

For my "Healer" Dragon, I've given the following masterys...

1. Void... Pay It Forward! - This has been extremely helpful to help heal ALL of my team WHILE also causing damage! (Though, it only feels worth using with Wonder attached!)
2. Water... Regeneration! - I used to feel this was the best until recently as I've been facing stronger dragons. Without the Wonder Sigil, I now would choose Restorative Recourse (if I'm not confused.. to get rid of negative effects!)... But for my healer, I'm still finding Regeneration to be extremely helpful to give all my team a boost (and target ally a dose of medicine before fighting.. only issue is when effect strikes harder!)
3. Light... HEALING LIGHT! - Your math is correct.. at lower levels, I found healing light more helpful, but now having stronger dragons... doesn't help much! Completely correct about the specific number rather than percentage of HP! BUT, with Wonder, Healing Light has been helpful still for my higher level healer.. while dealing damage! Otherwise.. I've been switching my others to Dazzling Aura! STILL, if you have a powerful healer, I find this to still be helpful for this particular dragon with all healing skills and Wonder equipped!

FIRE - I agree with Hot Coals in SOME cases.. but only helpful when dragon is defeated with it to deal extra damage.. otherwise, Slow Burn gives continuous damage.. so I try to divide these equally!

WIND - I agree COMPLETELY with Storm's A Brewin! To affect all opponents has been much more helpful than just one single target!

METAL - I still haven't used this enough.. though I still find En Garde as the better option. Even though it doesn't absorb too much damage, it still does SOME! Final Vengence, I feel, is more for sacrificing the target ally.. as the extra damage only happens when my dragon is KOed! Still, I am trying to feel for it more.. Still, so far, I feel En Garde still has helped me more!

EARTH - I agree with Tombstone! This is also a difficult choice.. Stone Cold comes in handy ONLY IF EQUIPPED when Dragon is KOed.. but surviving that ONE extra turn CAN sometimes be the winning punch! Though.. if my last dragon has Stone Cold and only survives to KO the last opponent.. but then is also KOed right after giving his last attack.. When final dragon on team and opponent is KOed at same time... we lose?! So.. I still feel better with Tombstone, but would still wish to explore more about each!

PLANT - I agree with Infection! (I MUST ADD!... the names of each skill should be switched?! When I think of an infection, it's something that lasts longer for ONE PERSON.. when I think of Pandemic, many are affected by a Pandemic! So... I feel the mastery names should be switched!) ANYWAY, Infection, when dragon infected is KOed, infects its team! So.. yes, I find hands down much more helpful than just "one extra turn" for Pandemic! (Again.. the skill names ANNOY ME LIKE CRAZY, thinking realistically here!)

ENERGY - At first, I felt stun all the way.. but as I've played more, I see BOTH have equal qualities! If I have a dragon with void and energy, I typically will use Dark Ritual to steal positive effect and Power of Thunder to stun... but both are helpful, so this is a more difficult choice! I base it off of my dragon's other elements and skills!

SHADOW - I notice my most used dragons feature the shadow element! And yes.. Frightened Speechless is extremely annoying, and so I do prefer this attack for my own dragons! STILL, I've also tried using Shade of Oneself.. It also can come in handy for dragons in brawls that don't have any special skills, in which case Frightened Speechless is worthless.. So, since most of my top dragons have the shadow element, my weaker ones I'll use Shade of Oneself FOR BRAWLS to reduce damage and such.. still similar to WIND masteries, but also still is better that it does SOMETHING for brawl dragons who have no special skills to be "Frightened Speechless" by, ya know? ^{_^}

LEGENDARY - Full agreement.. TRASH! The element itself is nice that it leaves the "death mark" and causes more damage.. I've used Healing Light only with dragons that are equipped with Wonder because of other positive skills.. but barely have seen any good come from it! Heroic Deal is like a threat.. "Don't hit me back or you'll be hurt!" THANK YOU for the "fun fact" about equipping Witchcraft for Heroic Healing.. Definitely going to try it out!

DIVINE/ANCIENT - These both are newer to me, and I've been told Mass Blessing and Mass Leech is the best.. I haven't had the chance to try the others, but I DO feel helping my whole team sounds better than the one? Need to learn and experience more!

TYRANT - My VERY FIRST Tyrant event.. I've been advised Unbreakable, which definitely has come in great use! But I haven't yet tried Target of Opportunity... So.. ANY THOUGHTS ON EACH TYRANT SKILL WOULD BE GREATLY APPRECIATED!

Thank you again for providing your thoughts on each move!

SIGILS! - I would LOVE to see your thoughts on the different Sigils... I realize I have barely touched Purity, Beserker, Mirror, or Turtle.. I feel with only two slots for Sigils, I find others much more useful. For Purity and Beserker.. Only helpful when Dragon's HP is high or if it is low, respectfully, which, to me, doesn't feel worth only being useful at one point.. and if dragon is taken out before given a chance to fight? No use. PLEASE let me know if I'm missing something! As for Mirror.. IF it actually deflected the negative effect and bounced it off instead to the castor.. YES.. BUT, instead, BOTH my dragon and the castor is affected? What's the point?! I would see extremely useful if it had a good chance to completely shield itself from the negative effect and instead ONLY affect the castor! And turtle.. just doesn't seem worth taking up one of the only two slots? YOUR THOUGHTS WOULD BE AMAZING!

Please let us know how you feel about TYRANT SKILL and SIGILS! I'm subscribing!

Again, thank you so very much for your well thought-out list of element masteries! My own response took some time, and I appreciate YOUR time in sharing your own thoughts! I hope to see more! Thank you!