Land
T: add 1 to your mana pool
1, T, sacrifice ~this~: each player may search his or her library for up to two basic land cards and put them into hand. Each player who searched his or her library this way shuffles it.
4G, Sacrifice a blue creature: put a time counter on target artifact
Each land with a time counter on it is a enchantment in addition to its other types

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3
Artifact Creature - Merfolk Warrior (2/1)
At the beginning of your upkeep, target opponent may Discard a sorcery card. If that player does, add 1 to your mana pool

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R
Creature - Elemental Rogue (2/2)
When ~this~ leaves the battlefield, ~this~ deals 3 damage to target creature
R, Sacrifice a Plains: ~this~ can't be blocked by more than one creature until end of turn

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AlexChurchill/MagicCardGenerator