That probably isn't necessarily a reason to make the switch, but it's something to consider
Primeval Titan First Printed: 2010-JUL Banned: 2012-SEP In a format where 6-mana spells are par for the course, a card which tutors for any two non-basic lands and then demands an immediate answer to prevent its owner from further accelerating from mid- to end-game is problematic
Its control for controls sake, and without a combo finish or lifegain, youll just die really, really slowly
This can make finding suitable black mana ramp cards for a modern Commander deck tricky without resorting to mana rocks or nonbasic lands, as blacks earliest mana accelerators and its most potent modern designs tend to only be suited for specific types of decks
Collector Booster Pack: 15 cards with 1 double-sided token
Do note that you do need to target the Commander, so you may need to get through a field of hexproof or shroud