While Downpour allows the player to discard one water energy card from the deck, as many times as they like during their turn, before they attack, Riptide complements it by dealing 10 plus 10 damage multiplied by the number of water energy cards that the player has in the discard pile
You choose which cards you're returning to your hand, if any, after rolling the dice
This is really good when you exile two types on one card, like Solemn Simulacrum which is both an artifact and a creature
Gollum, Patient Plotter Gollum, Patient Plotter gives you a repeatable method for being tempted by The Ring, and can help you avoid commander tax
Sure, some of them have sky-high mana costs or hefty price tags, but when youre cheating them into play with a well-timed reanimation spell, it all feels worth itespecially when their enter-the-battlefield effects completely turn the game around on the spot
Also very time consuming