Sunbird's Invocation [Ixalan Prerelease Promos] Thunder where X is the number

where X is the number of lands you control

Set: Nemesis Type: Enchantment Rarity: Rare Cost: {2}{U}{U} Fading 5 (This enchantment enters the battlefield with five fade counters on it

put it into its owner's graveyard

master polymorphist

{T}: Add {R} or {W}

Sunbird's Invocation [Ixalan Prerelease Promos] Thunder where X is the numberSet: Ixalan Prerelease Promos Type: Enchantment Rarity: Rare Cost: {5}{R} Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's converted mana cost. You may cast a spell with converted mana cost X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order.