The First Sliver (Retro) [Modern Horizons] SV41 You can only use this

You can only use this effect of "Darklord Nasten" once per turn

Set: Secret Lair Drop Series Type: Tribal Enchantment — Faerie Rarity: Mythic Cost: {1}{B} At the beginning of your upkeep

Set: McDonald's Promos: 2011 Collection Type: Darkness Rarity: Promo Retreat cost: Colorless

but it cannot declare an attack this turn

If you control ten or more lands

The First Sliver (Retro) [Modern Horizons] SV41 You can only use thisSet: 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. A humble appearance belies a master's skill.