Heres what we came up with
You could target a bothersome creature in play or deal a little extra damage to your opponent
If your board is filled with 5 cards when you play "OP06-086 Gecko Moria", you will need to choose 1 of the Characters on your field to trash before playing Moria
Card Name Mana Cost Type Legendary Creature Human Warrior Rarity Rare rules Text Reyhan enters with three +1/+1 counters on it.Whenever a creature you control dies or is put into the command zone, if it had one or more +1/+1 counters on it, you may put that many +1/+1 counters on target creature.Partner (You can have two commanders if both have partner.) P/T Number 13 Language English Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless Rulings (11/10/2020) If enough -1/-1 counters are put on a creature at the same time to make its toughness 0 or less, the number of +1/+1 counters on it before it got any -1/-1 counters will be used to determine how many counters you put on target creature
Flashback cards would fit a deck with this card well