When Eternal Witness enters, you may return target card from your graveyard to your hand. 2/1
{T}, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) 4/3
First strike, trample Whenever Sardian Avenger attacks, it gets +X/+0 until end of turn, where X is the number of artifacts your opponents control. Whenever an artifact an opponent controls is put into a graveyard from the battlefield, Sardian Avenger deals 1 damage to that player. 1/1
You have hexproof. (You can’t be the target of spells or abilities your opponents control.) 2/1
You may have Mirrormade enter as a copy of any artifact or enchantment on the battlefield.
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) Whenever a creature you control attacks alone, it gains double strike until end of turn. 3/3
Whenever one or more other Elves you control enter, create a 1/1 green Elf Warrior creature token. This ability triggers only once each turn. {5}{G}{G}: Elves you control get +2/+2 and gain deathtouch until end of turn. 2/2
You can’t spend mana to cast this spell. Convoke, delve (Each creature you tap while casting this spell pays for {1} or one mana of that creature’s color. Each card you exile from your graveyard pays for {1}.) You may cast Hogaak, Arisen Necropolis from your graveyard. Trample 8/8
Affinity for planeswalkers (This spell costs {1} less to cast for each planeswalker you control.) Flying, vigilance Whenever an opponent attacks with creatures, if two or more of those creatures are attacking you and/or planeswalkers you control, that opponent loses 3 life and you draw a card. 2/4
When Gray Merchant of Asphodel enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) 2/4
Enchant creature Enchanted creature gets +2/+2 for each other enchantment on the battlefield.
Enchant creature As long as enchanted creature is green, it gets +1/+1 and has indestructible. (Damage and effects that say “destroy” don’t destroy it. If its toughness is 0 or less, it’s still put into its owner’s graveyard.) As long as enchanted creature is white, it gets +1/+1 and has flying.
{T}: Add {R}. Barbarian Ring deals 1 damage to you. Threshold — {R}, {T}, Sacrifice Barbarian Ring: It deals 2 damage to any target. Activate only if seven or more cards are in your graveyard.
Other Goblins you control get +1/+1. Sacrifice a Goblin: Destroy target artifact. 3/3