While values change, this could be due to the viability of the card
Gravity Controller makes this much easier by Summoning an Invoked monster in the Extra Monster Zone, it can be used as Link Material right away
Cards that say "1+ non-Tuners" or "1 or More non-Tuners" can use multiple non-Tuner Monsters for their summoning, but there are cards that will require exact numbers, like Celestial Double Star Shaman, or a higher minimum of non-tuners, like Trishula, Zero Dragon of the Ice Barrier
One downside to this: as a trap card, you can only activate this card on your opponents turn after setting
I understand that the implementation of the keyword in tournament play caused some headaches and chunky play, but it's a cool mechanic that embodies how some of us feel about our next draw
However, you get to take one Prize card of your choice directly when you use the attack