Like most Magic: The Gathering cards, the value of Minamo depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Planechase Planes)
Its hanging around at between $3 and $5 right now, but I think its severely undervalued at the moment and a good card to get in low on
It reminds me of Alpha Authority (1G Enchantment Aura, Enchant creature, Enchanted creature has hexproof and can't be blocked by more than one creature.) Oashra Cultivator: Limited
Basic deck information tools can be found under the decks Settings (the gear icon) draw sample hands and see the mana curve/mana symbol distribution at a glance
Legends was a MTG set that didnt have a clear pattern for mana symbols
If you have ever played a goblin mirror where both players had hasted Shrpshooters hit the deck at the same time you will know quite how stupid it is