This time, rather than paying an additional Kicker cost, Void activates if a nonland permanent left the battlefield this turn or a spell was warped this turn. For better or worse, that stipulation around nonland permanent means you cant get tricky with Fetch Lands
But those cards make those strategies, enabling something powerful you wouldnt have been able to do otherwise
It's only $15 for 35 mini boosters (see here), and this year's is one of the best ever, with cards like Okidogi, Munkidori, and Gengar making appearances, it's a great mix of reprints and new faces
But imagine Kumena, some merfolk, an untapper like Intruder Alarm and like Cryptolith Rite: you can tap to draw some cards, cast merfolk to untap the board, then keep tapping to draw and cast more merfolk and keep going