Lets go down each card type and look at each corresponding subtype
Slightly psychedelic in design, with a hint of gaudiness, you certainly won't be forgetting it any time soon
It provides a solid stat buff, and when that creature inevitably dies, you get to mill a bunch and reanimate something, and put the Aura back in hand
Monstrosity of the Lake can be a great way to pave your way for a final attack thatll take down all of your opponents
Minwu, White Mage would also be a must: every time you gain life, she puts a +1/+1 on each cleric you control
Sword of the Animist Useful ramp outside of green, but ramping from a piece of equipment that equips for 2 mana sounds like I should be doing something better than Sword of the Animist