With four mana, use three of that to untap Basalt Monolith
We were responsible for the content of sixteen huge and beloved RPGs, and we wanted to make sure that as many players as possible could build around their favorite character in their favorite format
And which should you collect
You do not discard to hand size during another player's turn, regardless of how many cards youre holding
Sure, you can get that same deal (or better) for a mere five mana, rather than eight, but then you wouldn't be doing it every turn, turning your lands into 4/4 trampling, vigilant, indestructible threats, and you'd have to actually draw your spell, rather than just having it right there in the command zone
Just as Harmonize was much, much better than Concentrate, so too is Divination better in black than blue