Hello Neighbors,
Welcome to the last tournament of Holiday December. The tournament boss is the Wintry Dragon. Win 30 rounds and this dragon can be in your storage. I listed the number of Jolly Hollies that can be won with each round. Jolly Hollies can lead to the ultra rare Trinket Dragon - the monthly dragon.
Here are the opponents:
Wintry Tournament (Jolly Hollies in parenthesis):
1. Teacup 3 (pink, white, purple) (super rare) (1 Jolly Holly)
2. Amaryllis 4 (holiday, flower, white) (ultra rare) (1 Jolly Holly)
3. Ash 5 (fey, black, red) (super rare) (1 Jolly Holly)
4. Jingle 6 (holiday, white) (ultra rare) (1 Jolly Holly)
5. Avalanche 7 (black, white) (super rare) (1 Jolly Holly)
6. Rogue 8 (champion) (super rare) (2 Jolly Hollies)
7. Creepy 9 (spooky, black, blue) (super rare) (2 Jolly Hollies)
8. Waxwing 10 (black, white, yellow) (super rare) (3 Jolly Hollies)
9. Chromastr!pe 11 (rainbow, white) (ultra rare) (4 Jolly Hollies)
10. Avenging 12 (champion) (rare) (6 Jolly Hollies)
11. Blitz 13 (heart, pink, yellow) (super rare) (7 Jolly Hollies)
12. Expression 14 (heart, green) (super rare) (9 Jolly Hollies)
13. Shadow Heart 15 (heart, purple) (ultra rare) (12 Jolly Hollies)
14. Neo Glasswing 16 (champion, rainbow) (ultra rare) (15 Jolly Hollies)
15. Saurian 17 (dino, white) (rare) (18 Jolly Hollies)
16. Teacher 18 (black, yellow) (super rare) (22 Jolly Hollies)
17. Inquisitor 19 (champion) (super rare) (27 Jolly Hollies)
18. Substorm 20 (shine, rainbow, blue) (super rare) (32 Jolly Hollies)
19. Norivine 16 (black) (ultra rare) (37 Jolly Hollies)
20. Pegasus II 17 (beast) (ultra rare) (44 Jolly Hollies)
21. Mithril 17 (champion, metal) (super rare) (51 Jolly Hollies)
22. Hekate 17 (arcane, olympus, purple) (super rare) (59 Jolly Hollies)
23. Jungle Warrior 18 (stone, blue) (rare) (68 Jolly Hollies)
24. Merfolk 18 (tropic, pink, white) (common) (77 Jolly Hollies)
25. Speedheart 18 (heart, pink) (rare) (88 Jolly Hollies)
26. Rainbow Sentinel 19 (champion, rainbow) (super rare) (99 Jolly Hollies)
27. Whiplash 19 (white, blue, green) (common) (111 Jolly Hollies)
28. Glowstorm 19 (holiday, white, yellow) (rare) (125 Jolly Hollies)
29. Black Knight 20 (champion) (super rare) (139 Jolly Hollies)
30. Wintry 20 (holiday, purple, yellow) (super rare) (155 Jolly Hollies) (Wintry Dragon egg in storage)
For the battles, I found a bit of a guide.
Enemy Type
Red use: Yellow, Blue, Stone
avoid: Green, Dino, Zodiac
Green use: Red, Mythic, Dino, Gemstone
avoid: Purple, Black, Stone
Yellow use: Pink, Black, Cosmic, Zodiac
avoid: Red, Blue, Gold
Blue use: Yellow, Purple, Rainbow, Gemstone
avoid: Red, White, Stone
Purple use: Green, Pink, Gold, Zodiac
avoid: Blue, White, Cosmic
White use: Blue, Purple, Stone, Rainbow
avoid: Black, Mythic, Cosmic
Pink use: Black, Gold, Fairytale, Gemstone
avoid: Yellow, Purple, Mythic
Black use: Green, White, Cosmic, Rainbow
avoid: Yellow, Pink, Fairytale, Gemstone
Diamond use: Diamond
avoid: Gold, Gemstone
Mythic use: White, Pink, Fairytale, Dino
avoid: Green, Rainbow, Zodiac
Cosmic use: Purple, White
avoid: Yellow, Black, Fairytale, Zodiac
Gold use: Yellow, Diamond
avoid: Purple, Pink, Rainbow
Fairytale use: Black, Cosmic, Zodiac
avoid: Pink, Mythic, Rainbow
Stone use: Green, Blue
avoid: Red, White, Dino
Dino use: Red, Stone
avoid: Green, Cosmic, Gemstone
Rainbow use: Mythic, Gold, Fairytale
avoid: Blue, White, Black
Gemstone use: Diamond, Black, Dino
avoid: Green, Blue, Pink
Zodiac use: Red, Mythic, Cosmic
avoid: Yellow, Purple, Fairytale
Royal use: White, Pink, Gold, Gemstone
avoid: Green, Purple, Black, Stone, Fairytale, Egypt
Tropic use: Mythic, Fairytale, Rainbow
avoid: Red, Stone, Dino
Spooky use: Pink, Black, Cosmic
avoid: blue, red
Champions are very tricky. The go to dragons for most players are as follows, The ADDMIP Dragons of Achilles, Diamond, Dark, Metal, Infinity and Passion. Different dragons work on champions on different islands so don't think you're just limited to the ADDMIP dragons when facing a champion type.