B
Creature - Spirit (2/3)
Whenever an opponent discards a card, you may pay B. If you don't, you may return any number of creature cards from your graveyard to hand
--The most stalwart spot may envy
– Folk Song (Trad.)

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1UU
Creature - Elemental Rogue (3/3)
T: exchange control of target basic land you control and target permanent of the same type target opponent controls
At the beginning of each opponent's upkeep, tap all Forests
--Nature envies the proper fruit but can defeat the jeans
– Uxo Asho, Cruel Warrior

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Tribal Land - Wizard
~this~ enters the battlefield tapped.
T: add B to your mana pool
3B, T, sacrifice ~this~: each player may search his or her library for up to three land cards and put them into hand. Each player who searched his or her library this way shuffles it.
Tap an untapped Wizard you control, T: add B to your mana pool. Spend this mana only on spells.
4: you lose 1 life for each basic land type among lands you control and regenerate target nonlegendary creature

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AlexChurchill/MagicCardGenerator