
Master of Pearls | Creature | Human Monk | Morph {3}{W}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Master of Pearls is turned face up, creatures you control get +2/+2 until end of turn. | David Gaillet

Jeering Instigator | Creature | Goblin Rogue | Morph {2}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Jeering Instigator is turned face up, if it's your turn, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn. | Willian Murai

Rattleclaw Mystic | Creature | Human Shaman | {T}: Add {G}, {U}, or {R}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Rattleclaw Mystic is turned face up, add {G}{U}{R}. | Tyler Jacobson

Trail of Mystery | Enchantment | | Whenever a face-down creature enters the battlefield under your control, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Whenever a permanent you control is turned face up, if it's a creature, it gets +2/+2 until end of turn. | Raymond Swanland

Deflecting Palm | Instant | | The next time a source of your choice would deal damage to you this turn, prevent that damage. If damage is prevented this way, Deflecting Palm deals that much damage to that source's controller. | Eric Deschamps

Mindswipe | Instant | | Counter target spell unless its controller pays {X}. Mindswipe deals X damage to that spell's controller. | Ryan Alexander Lee

Rakshasa Deathdealer | Creature | Cat Demon | {B}{G}: Rakshasa Deathdealer gets +2/+2 until end of turn.
{B}{G}: Regenerate Rakshasa Deathdealer. | John Severin Brassell