Wrack: Mechanics

Altitude: This creature cannot be blocked by creatures with Reach. Used on 1 cards: Soaring Seahawk

Bloodthirst: If an opponent was dealt damage this turn, this creature enters the battlefield with 2 +1/+1 counters on it. Used on 0 cards:

Crew: Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn. Used on 0 cards:

Bloodthirst: If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it. Used on 2 cards: Mako Shark, Murderous Scum

In card text or details pages, write the mechanic's code name (playtest name) between square brackets, like "[Crittercast]", "[Bushido 1]" or "[Delay 4 {2}{R}{R}]". It will be expanded to the mechanic's name plus reminder text, such as "Suspend 4 – {2} {r} {r} . (Rather than cast this spell from your hand,...)"
To expand a mechanic's name but not its reminder text, include parentheses at the end of the square brackets: "[Crittercast()]", "[Delay 9 {R}()]".