Flying
When Abyssal Horror enters the battlefield, target player discards two cards.
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
Flying, first strike
: Untap target Forest.
Flying, vigilance
( can be paid with either or .)
When Avatar of Discord enters the battlefield, sacrifice it unless you discard two cards.
If an opponent controls seven or more lands, Avatar of Fury costs less to cast.
: Avatar of Fury gets +1/+0 until end of turn.
If you have 3 or less life, Avatar of Hope costs less to cast.
Avatar of Hope can block any number of creatures.
If an opponent controls at least four more creatures than you, Avatar of Might costs less to cast.
Trample (If this creature would assign enough damage to its blockers to destroy them, you may have it assign the rest of its damage to defending player or planeswalker.)
If an opponent has no cards in hand, Avatar of Will costs less to cast.
If there are ten or more creature cards total in all graveyards, Avatar of Woe costs less to cast.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
: Destroy target creature. It can't be regenerated.
Legendary landwalk
Blazing Salvo deals 3 damage to target creature unless that creature's controller has Blazing Salvo deal 5 damage to him or her.
: Add to your mana pool.
At the beginning of each end step, each player gains control of all nontoken permanents he or she owns.
Protection from black
If an opponent controls a Swamp and you control a Plains, you may cast Cho-Arrim Legate without paying its mana cost.
Draw three cards.
When you control no artifacts, sacrifice Covetous Dragon.
A player who controls more permanents than each other player can't play lands or cast artifact, creature, or enchantment spells. That player may sacrifice a permanent for that player to ignore this effect until end of turn.
All Slivers have "Sacrifice this permanent: You gain 3 life."
, , Discard a card: Prevent all combat damage that would be dealt this turn.
Whenever a creature enters the battlefield, that creature's controller may have target creature of his or her choice get -3/-3 until end of turn.
Until end of turn, target creature becomes black, gets +1/-1, and gains ": Regenerate this creature."
less to cast.
: Destroy target creature. It can't be regenerated.