Thinking

Flying, protection from black 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.) When this creature enters, return target creature card from your graveyard to the battlefield.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Add .

, Sacrifice this artifact: Add one mana of any color.

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to that card's mana value.

(: Add .)

This creature enters with three +1/+1 counters on it. Remove a +1/+1 counter from this creature: It deals 1 damage to any target.