The other factor with Natural Order is that when you have enough cheap green creatures in your deck to enable it you probably just have enough mana to cast the things you would want to Order up
For example, when your opponent declares an attack, activate Good Goblin Houskeeping, then use the first effect of Snow Plow Hustle Rustle, Special Summoning itself and destroy all of your Spell & Trap Card
The card ended up being pretty powerful, so it's not something we want to add to formats that don't already have it
Depending on where you shop and the quality of the card that youre looking at, you can expect to find Iono (237/091) for around $35-40, with some higher-quality, graded cards going in the realm of $45-50 instead
In terms of gameplay, this card has two attacks
The permanent restriction often doesnt matter