Part of the reason Im being a stickler about this distinction is that there are actual MTG rules about what it means to move a counter, and some niche interactions pop up when you compare moving counters to removing a counter from one thing and putting a counter elsewhere. I can also see a future where we get rules text that references whenever you move one or more counters, which would require precise text on the card
We will not be including cards like Aftermath or Adventure that plays similarly
Puts 'em directly into play
Whether to include one card over the other comes down to specific environments, and larger Cubes could certainly facilitate both, but the point is that Callidus Assassin is a very real card for control decks that would like to spend their turns leaving up mana for counterspells and removal
Round up each time
3 Hakbal Of The Surging Soul Explore Endlessly A rather unique commander for Merfolk decks, Hakbal of the Surging Soul isn't a traditional lord creature, one that gives all your creatures of a specific type a static +1/+1 boost, but instead has the potential to do so much more