Sunbird's Invocation [Ixalan] Condition:Heavily Played If a land card is

If a land card is discarded this way

4RG: Other creatures you control get +1/+1 and gain trample and haste until end of turn

the Golgari called upon an army that had slept for millennia beneath the city

Tails You Lose Type: Land Rarity: Rare Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain

and target land

Sunbird's Invocation [Ixalan] Condition:Heavily Played If a land card isSet: Ixalan 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.