Pioneer

Whenever a creature with a -1/-1 counter on it dies, draw a card. {1}{B}{R}: Put a -1/-1 counter on another target creature. When The Scorpion Go...

[+2]: Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without...

({T}: Add {B}.)

Flash Flying

When Feral Prowler dies, draw a card.

({T}: Add {R}.)

Enchant player Creatures enchanted player controls lose all abilities and have base power and toughness 1/1. Enchanted player can't activate abil...

This spell costs {3} less to cast if there are ten or more nonland permanents on the battlefield. Destroy all nonland permanents.

Flying Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When Bloodwater Entity enters the battlefield, ...

({T}: Add {R}.)

{U}: Sinuous Striker gets +1/-1 until end of turn.

({T}: Add {U}.)

Struggle deals damage to target creature equal to the number of lands you control.

When Sunscourge Champion enters the battlefield, you gain life equal to its power.

Desert of the True enters the battlefield tapped. {T}: Add {W}. Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)

When Crypt of the Eternals enters the battlefield, you gain 1 life. {T}: Add {C}. {1}, {T}: Add {U}, {B}, or {R}.

When Champion of Wits enters the battlefield, you may draw cards equal to its power. If you do, discard two cards.

{T}: Add {C}. {T}, Pay 1 life: Add {U}. {1}{U}, {T}, Sacrifice a Desert: Target player mills four cards.

Search your library for up to two land cards, put them onto the battlefield tapped, then shuffle. Then if you control three or more Deserts, create...

Menace Whenever Dreamstealer deals combat damage to a player, that player discards that many cards.

{U}, {T}, Discard a card: Target player mills three cards.