Sunbird's Invocation [Ixalan Prerelease Promos] Avatar Minion If target opponent controls more

If target opponent controls more lands than you

(Additional mana in the cost may be paid with any color of mana or colorless mana

" said Urza

When the doom counter moves from "1

add an additional {B}

Sunbird's Invocation [Ixalan Prerelease Promos] Avatar Minion If target opponent controls moreSet: 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.