Hall of Gemstone [Mirage] HGSS24 You can only use this

You can only use this effect of "Speedroid Terrortop" once per turn

Set: The Duelist Genesis Card type: Synchro/Effect Monster Rarity: Ultimate Rare Attack: 2500 Defense: 200 1 Tuner + 1 or more non-Tuner monsters

you can Special Summon this card (from your hand)

banish it until your next Standby Phase

Set: Base Set Shadowless Unlimited Type: Grass Rarity: Common Retreat cost: Colorless

Hall of Gemstone [Mirage] HGSS24 You can only use thisSet: Mirage Type: World Enchantment Rarity: Rare Cost: {1}{G}{G} At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.