Theres likely plenty of times you can cast Ghalta, Primal Hunger for only 2 mana in a creature-heavy deck, leaving you extra mana to try to protect it with cards like Heroic Intervention or Mithril Coat
So, too, anything that pertains to vampires (Duskborne Skymarcher) or knights (Garrison Griffin)
However, there are likely better options available, such as counterspells or removal spells, that offer more immediate and versatile utility
1 Sprout Swarm
Skip to main content SIGN IN March of the Machine: The Aftermath Variants: Kiora, Sovereign of the Deep (Showcase) Edition: March of the Machine: The Aftermath Variants Type: Legendary Creature - Merfolk Noble Cast: Rarity: M Collector #: 0085 Pow/Tuf: 4/5 Vigilance, ward Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell from your hand, look at the top X cards of your library, where X is that spell's mana value