She gives all her controllers permanents indestructible, which can lead to some massive blowouts
Kaima, the Fractured Calm Kaima is a highly protective kami who lives at the roots of Boseiju
Older Magic has a plethora of playable archetypes built around a bunch of cheap artifacts, and Kappa Cannoneer slides right into these decks
You also need to make sure you hit your land drops, either with draw effects (Qiqirn Merchant and Adventurers Airship provide usable bodies as well as draw smoothing) or cards that directly give you lands or mana (World Map, landcyclers, Blitzball)
Barry was a fellow collegiate at the University of Pennsylvania, the school that would become the incubator for Magic
As a creature, Mirkwood Bats is a little underwhelming: a four-mana Black 2/3 with flying