The First Sliver [Modern Horizons] 134 Whenever a basic land is

Whenever a basic land is tapped for mana of the chosen color

Set: Commander 2013 Type: Legendary Creature — Giant Soldier Rarity: Mythic Cost: {3}{W}{U}{B} At the beginning of your upkeep

you may put an arrow card from your hand face up into your arsenal

" —Volrath

Set: Magic Origins Type: Enchantment Rarity: Mythic Cost: {4}{W} At the beginning of your upkeep

The First Sliver [Modern Horizons] 134 Whenever a basic land isSet: Modern Horizons Type: Legendary Creature Sliver Rarity: Mythic Cost: {W}{U}{B}{R}{G} Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Sliver spells you cast have cascade.