It has some built-in help by gaining life whenever you cast a white spell, but Im thinking in bigger terms
Chittering Witch comes from the Forgotten Realms Commander precons, and it's undoubtedly a Commander card. Hopefully youll see all three Rat tokens when it comes down, but dont expect that activated ability to destroy much without some support
Where the newer characters didn't exist previously, they've been reimagined in the classic aesthetic
Hex Parasite For X and either a black mana or 2 life, Hex Parasite can strip up to X counters from any permanent and powers itself up by +1/+0 for each counter you remove
Its limited in its application as a weaker Dispel, but you can sacrifice Diversion Unit to protect your team from a wrath, or to protect a better card from removal
In a deck where you might soon find yourself with over a dozen real Forests and a dozen face down "Forests," this Beast's ability to let you look at cards on the top of your library equal to the number of Forests you control could be incredibly helpful