The ruling questions for this theme will be unbearable to say the least.

The Pack Cover!
The new theme “Bearcti” Special Summons Synchro Monsters by looking at the difference in Levels!

DBAG-JP027 Bearcti – Micpola
Level 7 WATER Beast Effect Monster
ATK 700
DEF 2000
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) During the Main Phase (Quick Effect): You can Tribute 1 other Level 7 or higher monster in your hand; Special Summon this card from your hand, also you cannot Special Summon monsters for the rest of this turn, except monsters that have a Level.
(2) If this card is Special Summoned: You can add 1 “Bearcti” monster from your Deck to your hand, except “Bearcti – Micpola”.
Note: This card is named after the Polar Bear, i.e. Ursus polaris. + Micro

DBAG-JP028 Bearcti – Mictanus
Level 7 WATER Beast Effect Monster
ATK 700
DEF 1700
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) During the Main Phase (Quick Effect): You can Tribute 1 other Level 7 or higher monster in your hand; Special Summon this card from your hand, also you cannot Special Summon monsters for the rest of this turn, except monsters that have a Level.
(2) If this card is Special Summoned: You can target 1 “Bearcti” monster in your GY, except “Bearcti – Mictanus”; add it to your hand.
Note: This card is named after the Asian Black Bear, i.e. Ursus thibetanus. + Micro

DBAG-JP029 Bearcti – Micbilis
Level 7 WATER Beast Effect Monster
ATK 700
DEF 1400
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) During the Main Phase (Quick Effect): You can Tribute 1 other Level 7 or higher monster in your hand; Special Summon this card from your hand, also you cannot Special Summon monsters for the rest of this turn, except monsters that have a Level.
(2) If this card is Special Summoned: You can Special Summon 1 “Bearcti” monster from your hand, except “Bearcti – Micbilis”.
Note: This card is named after the Grizzly Bear, i.e. Ursus arctos horribilis + Micro.

DBAG-JP030 Bearcti – Megapola
Level 8 WATER Beast-Warrior Tuner Effect Monster
ATK 2500
DEF 700
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) During the Main Phase (Quick Effect): You can Tribute 1 other Level 7 or higher monster in your hand; Special Summon this card from your hand, also you cannot Special Summon monsters for the rest of this turn, except monsters that have a Level.
(2) If this card is Special Summoned while you control another “Bearcti” monster: You can target 1 Spell/Trap your opponent controls; destroy it.
Note: This card is named after the Polar Bear, Ursus polaris + Mega.

DBAG-JP031 Bearcti – Megatanus
Level 8 WATER Beast-Warrior Tuner Effect Monster
ATK 2400
DEF 700
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) During the Main Phase (Quick Effect): You can Tribute 1 other Level 7 or higher monster in your hand; Special Summon this card from your hand, also you cannot Special Summon monsters for the rest of this turn, except monsters that have a Level.
(2) If this card is Special Summoned while you control another “Bearcti” monster: You can target 1 face-up monster your opponent controls; change it to face-down Defense Position.
Note: This card is named after the Asian Black Bear, i.e. Ursus thibetanus. + Mega

DBAG-JP032 Bearcti – Megabilis
Level 8 WATER Beast-Warrior Tuner Effect Monster
ATK 2800
DEF 700
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) During the Main Phase (Quick Effect): You can Tribute 1 other Level 7 or higher monster in your hand; Special Summon this card from your hand, also you cannot Special Summon monsters for the rest of this turn, except monsters that have a Level.
(2) If this card is Special Summoned while you control another “Bearcti” monster: You can target 1 card in your opponent’s GY; banish it.
Note: This card is named after the Grizzly Bear, i.e. Ursus arctos horribilis + Mega.

DBAG-JP033 Bearcti – Polari
Level 1 WATER Beast Synchro Effect Monster
ATK 700
DEF 1000
Cannot be Synchro Summoned. Must be Special Summoned (from your Extra Deck) by sending 1 Tuner and 1 non-Tuner you control whose Levels differ by 1 to the GY.
You can only use each of this card name’s 1st and 2nd effects once per turn.
(1) If this card is Special Summoned: You can activate 1 “Bearcti Big Dipper” directly from your Deck.
(2) You can Tribute 1 Level 7 or higher monster; add to your hand, or Special Summon, 1 “Bearcti” monster from your GY.
Note: This card is named after Polaris, the North Star

DBAG-JP034 Bearcti – Septen Trion
Level 7 WATER Beast-Warrior Synchro Effect Monster
ATK 3000
DEF 700
Cannot be Synchro Summoned. Must be Special Summoned (from your Extra Deck) by sending 1 Level 8 or higher Tuner and 1 non-Tuner Synchro Monster you control whose Levels differ by 7 to the GY.
You can only use this card name’s 2nd effect once per turn.
(1) The effects of all face-up monsters Special Summoned from the Extra Deck that have no Level are negated.
(2) If your opponent Special Summon a monster(s): You can add 1 “Bearcti” card from your Deck to your hand.
Note: This card’s name comes from “Septentrion”, another name for the Big Dipper’s seven stars.

DBAG-JP035 Bearcti – Grand Chariot
Level 7 WATER Beast-Warrior Synchro Effect Monster
ATK 2700
DEF 700
Cannot be Synchro Summoned. Must be Special Summoned (from your Exra Deck) by sending 1 Level 8 or higher Tuner and 1 non-Tuner Synchro Monster you control whose Levels differ by 7 to the GY.
(1) If this card is Special Summoned: You can target up to 2 other cards on the field; destroy them.
(2) Once per turn, when a card or effect is activated that targets a “Bearcti” card(s) you control (Quick Effect): You can Tribute 1 monster from your hand or field; negate the activation.
Note: This card is named after one of the French names for the Big Dipper, “Grand Chariot”.

DBAG-JP038 Bearcti Big Dipper
Field Spell Card
(1) Once per turn, if you would Tribute a monster to activate a “Bearcti” monster’s effect, you can banish 1 Level 7 or higher “Bearcti” monster from your GY instead.
(2) Each time a monster(s) is Special Summoned, place 1 counter on this card.
(3) Once per turn, if a monster(s) is Special Summoned: You can remove all counters from this card (min. 7), then target 1 monster your opponent controls; take control of it. You can only activate this effect while there is a “Bearcti” Synchro Monster on the field.

DBAG-JP037 Bearcti Slider
Quick-Play Spell Card
You can only activate 1 card with this card’s name per turn.
(1) Target 1 of your “Bearcti” monsters that is banished or in your GY; you cannot Special Summon monsters for the rest of this turn after this card resolves, except monsters that have a Level, also Special Summon that target, but it cannot attack, also destroy it during the End Phase.

DBAG-JP039 Bearcti Quint Charge
Continuous Trap Card
(1) Once per turn: You can pay 700 LP to activate 1 of these effects;
● Add 1 “Bearcti” monster from your GY to your hand.
● Tribute 2 “Bearcti” monsters, and if you do, Special Summon 1 “Bearcti” monster from your Extra Deck, whose Level equals the difference between those monsters’ Levels, ignoring its Summoning conditions.
(2) When your “Bearcti” monster is destroyed by battle with an opponent’s attacking monster: You can have your opponent shuffle cards from their hand, field, and GY into the Deck until they have a total of 7.
Note: This card seems to be referencing to the Ursa Major Moving Group, 5 stars that are moving together, while Dubhe and Alkaid are flying in the opposite direction.

DBAG-JP043 Ayer’s Rock Sunrise (Reprint)
Source: YGOrg