Bonus sheets from previous sets sometimes have a unifying mechanical theme (in Outlaws of Thunder Junction , for example, all the cards from the Breaking News bonus sheet could commit a crime), but there's no specific mechanical thread connecting these Through the Ages cards
Its also just a fine piece of ramp in a storm deck
Its also realistic to hard cast elementals and escape Kroxa so we werent hurting for top end threats
(2023-06-16) If the creature you choose as your Ring-bearer was already your Ring-bearer, that still counts as choosing that creature as your Ring-bearer for the purpose of abilities that trigger "whenever you choose a creature as your Ring-bearer" or abilities that care about which creature was chosen as your Ring-bearer
For example, Applejack lets a player summon their real-life My Little Pony toys as token creatures, while Fluttershy can lock down a creature from attacking or blocking as long as her controlling player is looking directly at the card
Youll untap creatures you control at the beginning of the additional combat but not at the beginning of your regular combat