Instant Fusion [DT04-EN093] Common

Instant Fusion [DT04-EN093] CommonSet: Duel Terminal 4 Card type: null Rarity: Common

Set: Fourth Edition Type: Enchantment Rare Cost: {R}{R} Players can't untap more than one creature during their untap steps

Set: EX: Deoxys Type: Colorless Rarity: Rare Retreat cost: Colorless

Set: Platinum: Rising Rivals Type: Colorless Rarity: Holo Rare Retreat cost: 0

Set: OTS Tournament Pack 2 Card type: Trap Card Rarity: Super Rare Once per turn: You can target 2 "Monarch" Spell/Trap Cards in your Graveyard

you may have Valakut

Set: Unlimited Edition Type: Creature — Merfolk Rare Cost: {U}{U} Other Merfolk get +1/+1 and have islandwalk

Set: Mercadian Masques Type: Artifact Rare Cost: {3} {4}

Set: Base Set Shadowless Unlimited Type: Special Energy Rarity: Uncommon

Collectors’ Edition Type: Sorcery Rare Cost: {1}{U} Take an extra turn after this one

Set: Black & White: Noble Victories Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

but how do we get down

its controller adds an additional one mana of that color