Sword of Hearth and Home also searches for basic lands, but only when Cloud deals combat damage to an opponent
Meanwhile, I adore Into the Unknown. Not only is that a killer song from Frozen 2, its an excellent low-end removal tool that Sapphire/Amethyst really does need to keep up the pace, preventing foes from getting too far ahead before you have a chance to ramp up to your bigger plays
It's a wonderful effect to pad out your life total, especially combined with cards like Rhox FaithmenderRhox Faithmender and Beacon of ImmortalityBeacon of Immortality
Blink strategies are also some of the most flexible in Magic: The Gathering
I don't necessarily love that, personally
It costs only four Ink to play and doubles as a way to eliminate powerful characters, too