Pay 3 life to have it enter untapped, and it taps for G like a basic
Creature Artifact - Dragon Color tag templates(None) Suspicious Bookcase Defender , : Target creature can't be blocked this turn
If you do, draw X cards, then then you may put a permanent card with a mana value X or less from your hand onto the battlefield, where X is the sacrificed creatures mana value
The goal of this deck is to kill our opponents with poison counters while controlling the board with tons of interaction and misdirection, including blowing up all their permanents with Dralnu
Speaking of Items, you will absolutely want the Emerald Chromicon in play, which allows you to bring characters that were banished during your opponents turns back into your hand
The ceiling on this is that you cast a bunch of cheap spells and make like 20 1/4s with Haste but...that's not going to happen in Limited