Ebondeath, Dracolich This thing clocks your opponent fast, and, more importantly, it never dies
Level one isn't good but it is cheap, useful, and doesn't risk loss of tempo
Its activated ability offers an additional reliable way to grow creatures, ensuring the Crystal contributes even if your deck doesnt naturally produce counters
The idea here is just to fill the board with creatures, traverse the planes as best as you can, and strike hard when a favorable plane appears
There are cards with names like Youre Ambushed on the Road, which give you two different effects based on your decision
It gives all your creatures with deathtouch the ability to deal out two poison counters when a creature with deathtouch deals combat damage to a player