Some of the best uses for these is to inject a ton of power into a chaos draft or to give as a surprise gift to a friend
When magic first started, Wizards was a far smaller company and pulled ideas for sets from history or, in the case of Arabian Nights, a book (One Thousand and One Nights), which gave way to cards like Ali Baba
So, aside from Water-type Pokmon, it also accounts for cards that utilize Water Energy like Dragonite, Garchomp (Space-Time Smackdown), Druddigon, and even Colorless cards like Arceus EX and Yanmega EX
Wicked Wolf This card is a 3/3 that fights another creature on ETB, and it can grow into a larger threat with enough food tokens
If the number is even, until end of turn, red creatures get -1/-1 and if a player taps a Mountain for mana, that Mountain produces colorless mana instead of any other type
As far as bringing cards in, Lithomantic Barrage, Get Lost, and Destroy Evil are all good answers to big creatures that try to roadblock your attacks