Similar to the "Atlantean" cards, there are some Level 3 "Mermail" monsters whose effects can be activated after being discarded or sent from the hand to the Graveyard
Add 1 card with [Knightmon] or [DeadlyAxemon] in its name or [Twilight] in its traits among them to your hand
When it enters, it brings another dragon back from your graveyard straight onto the battlefield, immediately rebuilding your board after a wipe or giving you extra value in grindy games
C Common Red Arrows X SPELL Target up to 2 face-up monsters in the Extra Monster Zone(s)
Unfinity Unfinity was released in late 2022 and brought 30 commanders, a plethora of new and interesting mechanics including stickers and attractions, a mix of Eternal playable and unplayable cards, and a unique space theme
And since a Background is basically a second commander (in enchantment form), you should definitely pair one with Gale