Theros

Battlewise Hoplite | Creature | Human Soldier | Heroic — Whenever you cast a spell that targets Battlewise Hoplite, put a +1/+1 counter on Battlewise Hoplite, then scry 1. (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) | Willian Murai

Daxos of Meletis | Legendary Creature | Human Soldier | Daxos of Meletis can't be blocked by creatures with power 3 or greater. Whenever Daxos of Meletis deals combat damage to a player, exile the top card of that player's library. You gain life equal to that card's mana value. Until end of turn, you may cast that card and you may spend mana as though it were mana of any color to cast that spell. | Karla Ortiz

Medomai the Ageless | Legendary Creature | Sphinx | Flying Whenever Medomai the Ageless deals combat damage to a player, take an extra turn after this one. Medomai the Ageless can't attack during extra turns. | David Palumbo

Ashen Rider | Creature | Archon | Flying When Ashen Rider enters the battlefield or dies, exile target permanent. | Chris Rahn

Sentry of the Underworld | Creature | Griffin Skeleton | Flying, vigilance {W}{B}, Pay 3 life: Regenerate Sentry of the Underworld. | Dave Kendall

Triad of Fates | Legendary Creature | Human Wizard | {1}, {T}: Put a fate counter on another target creature. {W}, {T}: Exile target creature that has a fate counter on it, then return it to the battlefield under its owner's control. {B}, {T}: Exile target creature that has a fate counter on it. Its controller draws two cards. | Daarken

Akroan Hoplite | Creature | Human Soldier | Whenever Akroan Hoplite attacks, it gets +X/+0 until end of turn, where X is the number of attacking creatures you control. | Igor Kieryluk

Anax and Cymede | Legendary Creature | Human Soldier | First strike, vigilance Heroic — Whenever you cast a spell that targets Anax and Cymede, creatures you control get +1/+1 and gain trample until end of turn. | Willian Murai

Chronicler of Heroes | Creature | Centaur Wizard | When Chronicler of Heroes enters the battlefield, draw a card if you control a creature with a +1/+1 counter on it. | John Stanko

Fleecemane Lion | Creature | Cat | {3}{G}{W}: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.) As long as Fleecemane Lion is monstrous, it has hexproof and indestructible. | Slawomir Maniak