The Pack Cover features Mizael (Mizar) and seemingly two new(?) Dragons!

トリックスター・フーディ Trickstar Hoodie
Level 2 LIGHT Fairy Effect Monster
ATK 600
DEF 1800
You can only use the (1)st and (2)nd effect of this card’s name each once per turn.
(1) If you control a “Trickstar” Fusion or Link Monster: You can Special Summon this card from your hand.
(2) If this card is sent to the GY as material for the Link Summon of a “Trickstar” monster: You can add 1 “Trickstar Fusion” or “Trickstar Diffusion” from your Deck to your hand.

Note: Seemingly based on the Aconitum genus of flowers, known colloquially as monkshood (among other names).

トリックスターバンド・ドラマチス Trickstar Band Drummatis
Level 6 LIGHT Fairy Fusion Effect Monster
ATK 2000
DEF 1000
Materials: 2 “Trickstar” monsters
You can only use the 1st and 3rd effect of this card’s name each once per turn.
(1) If this card is Fusion Summoned: You can add 1 “Trickstar” card from your Deck to your hand with a different name from the cards you control and in your GY.
(2) Your “Trickstar” Link Monsters that point to this card gain 1000 ATK.
(3) If either player takes effect damage: You can target 1 face-up monster on the field; change its ATK to 0.

Note: Seemingly based on the Clematis genus of flowers + “drummer”. It might also be based on “Dramatis Personae” (Persons of the Drama), the important characters in a fictional work.

トリックスター・コルチカ Trickstar Colchica
Link-1 LIGHT Fairy Link Effect Monster
ATK 200
Link: Bottom
Materials: 1 non-Link “Trickstar” monster
You can only Special Summon “Trickstar Cortica(s)” once per turn. You can only use the effect of this card’s name once per turn.
(1) When a monster(s) is destroyed by a battle involving your “Trickstar” monster while this card is in your GY: You can banish this card, then target 1 of those destroyed monsters; inflict damage to your opponent equal to the ATK it had on the field.

Note: Seemingly based on Colchicum autumnale, the autumn crocus.

トリックスター・ノーブルエンジェル Trickstar Noble Angel
Link-2 LIGHT Fairy Link Effect Monster
ATK 2000
Links: Bottom-Left, Bottom-Right
Materials: 2 “Trickstar” monsters
You can only use the 1st, 2nd, and 3rd effect of this card’s name each once per turn.
(1) If this card is Link Summoned: You can add 1 “Blue Tears” card from your Deck to your hand.
(2) If you have a Fusion Monster on your field or in your GY: You can target 1 “Trickstar” monster in your GY; Special Summon it.
(3) If either player takes effect damage: You can target 1 face-up card on the field; destroy it.

Note: This is still a Hollyhock. It might be Noble + Blue to go with Blue Angel.

トリックスター・ディフュージョン Trickstar Diffusion
Normal Trap
You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) Activate 1 of these effects;
● Fusion Summon 1 “Trickstar” Fusion Monster from your Extra Deck, by banishing its materials from your GY.
● Immediately after this effect resolves, Link Summon 1 “Trickstar” monster.
(2) You can banish this card from your GY, then target 1 “Trickstar” monster you control; this turn, your opponent’s monsters cannot target monsters for attacks, except that monster, while you control it.

青い涙の乙女 Aoi Namida no Otome (Maiden of Blue Tears)
Normal Trap Card
You can only use 1 of the (1)st and (2)nd effect of this card’s name per turn, and only once that turn.
(1) If your opponent Special Summons a monster(s) and you control a Link Monster: Target 1 of those Summoned monsters; destroy it, and if you do, inflict damage to your opponent equal to half its original ATK.
(2) If either player takes effect damage while this card is in your GY: You can banish this card, then target 1 Normal Spell in your GY or banishment; Set it, but it cannot be activated this turn.

Confirmed Reprints:

Trikcstar Lillybell
Trickstar Lycoris
Trickstar Candina
Trickstar Corobane
Trickstar Bloom
Trickstar Holly Angel
Trickstar Light Stage
Trickstar Festival
Trickstar Fusion
Angel with Blue Tears
Trickstar Reincarnation

Thanks to Decchan for the research into what plants these are based on.

Source: Yu-Gi-Oh!.JP