On Magic Arena , there isn't really an easy way to reduce the cost of the deck more other than by cutting back on the rare lands, but Throne of Makindi is too important to cut, which means the only real option is to drop Temple of Mystery for more copies of Thornwood Falls and basics
Void Dragon is also great, especially if you can play it from the graveyard or pay for it with Anrakyr
Inquisition of Kozilek is interesting to see, as is Barrowgoyf
The top of the list is mostly Commander-focused, but youll see a smattering of potential Modern plays after Modern Horizons 3 along the way
(To mill a card, put the top card of your library into your graveyard.) You put a +1/+1 counter on Ravenous Gigamole if you don't put a creature card into your hand with its ability, even if there wasn't a creature card among the milled cards
Psychic Psychic-type Pokemon revolve around putting Pokemon to sleep, confusing them, or poisoning them