There's also the deck building that is a key component as well
For long-term collection management, invest in these essential solutions: Physical Protection - Card sleeves, deck boxes, and binders protect valuable cards from wear and damage Digital Tracking - Card scanning apps help track your inventory and card values At On-Board Gaming in Escondido, our local game store stocks both sealed packs and single cards while supporting a wide range of card storage options for every collection size, from cardboard storage boxes to premium trade binders and custom deck cases

Scientists Abandon Hope Abian, Luvion Usurper (playtest) Abolish Absorb Vis Academic Dispute Academy at Tolaria West Acceptable Losses Akroma's Blessing Akroma's Vengeance Alabaster Host Intercessor Alberix, the Trade Planet (playtest) Alexi, Zephyr Mage Amber Gristle O'Maul Amugaba Ancestral Memories Ancient Excavation Angel of the Ruins Anje's Ravager Anurid Brushhopper Anvil of Bogardan Apocalypse Aquamoeba Arc Mage Arcane Subtraction Arm-Mounted Anchor Arrogant Wurm Artificer's Intuition Artillery Enthusiast Ash Barrens Astonishing Spider-Man Asylum Visitor Atemsis, All-Seeing Attunement Aura Extraction Avaricious Dragon Aven Trooper Avenger en-Dal Awaken the Honored Dead Backslide Bag of Holding Balamb T-Rexaur Balance Balduvian Horde Balloon Peddler Balshan Griffin Bandit's Talent Barbarian Bully Barkhide Mauler Barren Moor Basking Rootwalla Battle Plan Battlewing Mystic Bazaar of Baghdad Bebop, Warthog Warrior Bedhead Beastie Bedlam Reveler Behold the Beyond Binding Negotiation Blasted Landscape Blaster Mage Bloated Toad Blood Fountain Blood for the Blood God

Both paths through Tomb of Annihilation feature room effects which should cause a Sefris trigger from discarding or sacrificing creatures (including tokens), but if Sefris was already the reason we were venturing in the first place her once per turn stipulation means we cant take advantage
But what is banding, and how could it be helpful in your next deck