At the start of your combat step, all your Merfolk creatures explore, revealing the top card of your library and putting it into your hand if its a land, or giving that Merfolk a +1/+1 counter and then letting you choose to keep it on top of your deck or into your graveyard
Pick a template (Modern, Vintage, Mystical Archives, etc.), then change anything: name, mana cost, type line, rules text, power/toughness, art, artist credit
That being said, blue and blacks draft archetype in Commander Legends: Battle for Baldurs Gate is built around the initiative, and therefore it does have slightly more cards that care about it than the other colours
Since they are cursed with 'turn 1' or 'tap-in' restrictions, it seems difficult to aim for infinite combos