Psychic Venom [Alpha Edition]Set: Alpha Edition Type: Enchantment Aura Rarity: Common Cost: {1}{U} Enchant land Whenever enchanted land becomes tapped, Psychic Venom deals 2 damage to that land's controller.

Set: Beta Edition Type: Creature — Gargoyle Rarity: Rare Cost: {2}{R} Flying

You may cast the copies without paying their mana costs

Set: Zendikar Type: Creature — Snake Rarity: Mythic Cost: {1}{G} Landfall — Whenever a land enters the battlefield under your control

Shadow (This creature can block or be blocked by only creatures with shadow

the Tyrant enters the battlefield

Probably fine

Whenever a basic land is tapped for mana of the chosen color

Set: Theros Type: Legendary Enchantment Creature — God Rarity: Mythic Cost: {3}{G} Indestructible

Set: Eternal Masters Type: Land Rarity: Rare {T}: Untap target attacking creature

Set: Commander 2016 Type: Instant Rarity: Rare Cost: {1}{G} Untap all creatures

Set: Scars of Mirrodin Type: Legendary Creature — Dragon Skeleton Rarity: Mythic Cost: {3}{B}{B} Flying

with the exquisite caste above them