They can't be countered or redirected by standard instants and activated abilities, so the only way your opponent can interact with them is with something already in play
Aesi draws you a card whenever you have lands enter the battlefield and lets you play one extra land per turn
Sure, you could squeeze a little extra value out of a Genesis Wave, Torment of Hailfire or any other X spell, but doubling down on Hydras would be a fun way to go
While chances are slim, there might be a chance for it to release on Switch since Pokemon UNITE is also a mobile game available on the Switch
Psychic Venom has nothing to do with snakes, but I like the symbolic piece of artwork of how the Blue Mage is making one of the opponents' cards poisonous to them
Green is also exceptional at creating an immense mana advantage, typically with cheap cards like mana dorks (Llanowar Elves, Badgermole Cub) and land-based ramp, which is pretty unique to green (Rampant Growth, Cultivate)