This is based purely off of my experience in Commander, Im just someone who loves playing the format, not a deckbuilding expert
Some combos include: Fling - 2 CMC, Instant, requires the user to sacrifice a creature and then deals damage equal to its power to any target Greater Good - 4 CMC, Enchantment, makes the owner draw cards equal to the power of any creature sacrificed to trigger this effect Goblin Tunneler - 2 CMC, 1/1 Creature, it can be tapped to make target creature with power 2 or less unblockable for the turn, which would apply before combat Escape Tunnel - Land, it can be tapped and sacrificed alongside paying 2 colorless mana to make target creature unblockable for the turn How Final Fantasy's Jumbo Cactuar Breaks Magic: The Gathering There are many possible combos for Jumbo Cactuar to become a broken MTG card
What could make the MTG Fallout set any better
Taeko, the Patient Avalanche (NEW) Taeko, the Patient Avalanche Foundations Jumpstart, Mythic Were into the top 10 now, and were starting with Taeko, the Patient Avalanche
Bloodsworn Steward This is a nice card if you need your commander to attack as soon as possible