Just imagine getting 4 to the face with your Sephiroth's Intervention
Why are Charizard cards so expensive
As with much of my list, even for a virtual vanilla creatureI will remind you that enters the battlefield triggers were not actually introduced to Magic until Mirage being close to or on curve for their size is enough for them to stand out
If all the other decks are making 1/1 mana elves or 2/1 beaters then doing either of those things is tempo neutral, making a 2/3 is tempo positive, while doing nothing is very tempo negative
The first level of this class gets you an infinite hand size, which is tidy for a 1-drop
With Ivy, you generally build it as a very different Voltron-style deck, casting a bunch of enchantments and single-target spells and turning them into two-for-ones by making sure you target someone other than Ivy