Sideboard

This deck is suposed to do what you need.
Want to kill a bug, use nekrataal
Want to stop huge damage, use weaver
Want to buy cards, use blossom
Want to return bug to owner, use man-o'-war
Want to get some life, use radiant's dragoon
Want to destroy some lands, use Avalanche Riders
Wanna kill your opponent? Sacrifice Symbiotic Wurm to put 7 tokens into play and to get nantuko. Next round, sacrifice those tokens so nantuko will become 16/16.
Before that, you can use the Phoenix to clean the table (with nekrataal, tradewind, Man-o'-War too)
etc.
On later game, you can use tradewind rider with birds or blossom to return permanets to owner hands.

To speed getting the enchantments, use Idyllic Tutor & blossom.

You must discover what lands you wanna put in.