Holon Transceiver (98) [Delta Species]

Holon Transceiver (98) [Delta Species]Set: Delta Species Type: Tool Rarity: Uncommon Retreat cost: null

Counter target spell if its mana value is X

Set: Ravnica Allegiance Promos Type: Land — Plains Island Rarity: Rare ({T}: Add {W} or {U}

At end of combat

Set: Ultimate Masters Box Topper Type: Legendary Snow Land Rarity: Mythic Dark Depths enters the battlefield with ten ice counters on it

tap target creature that player controls

I've merely told it what that is

The sea gives

Set: Unlimited Edition Type: Creature — Demon Rarity: Rare Cost: {4}{B}{B}{B} Flying

Eternalize {3}{W}{W} ({3}{W}{W}

Set: Modern Masters 2017 Type: Legendary Creature — Angel Rarity: Mythic Cost: {2}{W}{W} Flying

and you may spend mana as though it were mana of any type to cast that spell

Set: Commander 2017 Type: Land Rarity: Uncommon Arcane Sanctum enters the battlefield tapped