With loads of enchantment creatures about thanks to Final Fantasy and Duskmourn, it will be particularly helpful to have a one mana counterspell that can deal with them - or with Izzet Cauldron's cauldrons
Chill Haunting Illus
Even better, it asks you to sacrifice the creatures you put counters on, which opens you up to lots of nonsense with The Ozolith
Even if we restrict ourselves to Mono-Green Aggro, decks will still play their creatures on a mana curve starting at one and reaching up to four, five, or six
If a creature has both offspring and a triggered ability that goes off when it enters the battlefield, the token copy will have the same ability when it enters
This was founded after Wizards took over management of the format from the Commander Rules Committee, who had been the target of harassment after one particularly controversial banlist decision