You cheat fatties into play, one way or another. Aside from Mayael herself, the best shot at cheating something into play is through Lurking Predators or Guild Feud. Most of your big creatures either win you the game outright or protect your other big creatures; this archetype generally has a problem with Wrath effects, so you have to protect them from being wiped from the board by regeneration or indestructibility.
I suggest upping your fatty count so you have less flops with Mayael, and maybe cutting some of the utility creatures that only are good when you actually have fattys.
1 Mayael the Anima
Creatures
2 Akroma, Angel of Fury
3 Artisan of Kozilek
4 Balefire Dragon
5 Blazing Archon
6 Brutalizer Exarch
7 Centaur Omenreader
8 Deathless Angel
9 Garruk's Horde
10 Garruk's Packleader
11 Gisela, Blade of Goldnight
12 Godsire
13 Hamletback Goliath
14 Hateflayer
15 It that Betrays
16 Krosan Drover
17 Magmatiic Force
18 Mwonvuli Beast Tracker
19 Mycoid Shepherd
20 Paleoloth
21 Somberwald Sage
22 Spearbreaker Behemoth
23 Spellbreaker Behemoth
24 Terastodon
25 Thornscape Familiar
26 Vagrant Plowbeasts
27 Vexing Shusher
28 Vorinclex, Voice of Hunger
29 Worldspine Wurm
30 Wurmcoil Engine
31 Cultivate
32 Decree of Annihilation
33 Disaster Radius
34 Growth Spasm
35 Idyllic Tutor
36 Obliterate
37 Pure / Simple
38 Rampant Growth
39 Ranger's Path
Instants
40 Congregation at Dawn
41 Path to Exile
42 Swords to Plowshares
43 Worldly Tutor
Artifacts
44 Expedition Map
45 Gilded Lotus
46 Quicksilver Amulet
47 Rings of Brighthearth
48 Sol Ring
Enchantments
49 Asceticism
50 Aura Shards
51 Cream of the Crop
52 Greater Good
53 Guild Feud
54 Lurking Predators
55 Mayael's Aria
56 Triumph of Ferocity
57 Vicious Shadows
58 Warstorm Surge
59 Where Ancients Tread
Planeswalkers
60 Garruk, Primal Hunter
61 Ancient Tomb
62 Battlefield Forge
63 Boros Garrison
64 Brushland
65 Clifftop Retreat
66 Command Tower
67 Contested Cliffs
68 Evolving Wilds
69 Gavony Township
70 Graypelt Refuge
71 Grove of the Burnwillows
72 Gruul Turf
73 Jungle Shrine
74 Karpulsan Forest
75 Kazandu Refuge
76 Kessig Wolf Run
77 Krosan Verge
78 Mossfire Valley
79 Mosswort Bridge
80 Raging Ravine
81 Rootbound Crag
82 Selesnya Sanctuary
83 Slayers' Stronghold
84 Stirring Wildwood
85 Sungrass Prairie
86 Sunhome, Fortress of the Legion
87 Sunpetal Grove
88 Terramorphic Expanse
Basic Lands
6 Forest
3 Mountain
3 Plains
Why Mayael of the Anima?
How does one play this deck?
Nuances of the Deck
-The single best card to get your Mayael's Aria active is undoubtedly Hamletback Goliath. It gets real big real fast, especially against white decks.
-Remember when you have Lurking Predators or Guild Feud active to make the most use out of your top-of-library tutors like Brutalizer Exarch, Mwunvoli Beast Tracker and Worldly Tutor.
-Cream of the Crop pairs exceptionally well with Lurking Predators as it allows you to continuously hit your Lurking Predators triggers.
Changes Log
Let me know what you think
Woodfall Primus blows up anything non-creature
Genesis provides good recursion
Sun titan gets back you smaller permanents which can be very helpful
I'm also excited to add the wurm into the deck as well as guild feud, both will hopefully be excellent additions.
~EDH~
GRWMayael the AnimaGRW
RGStonebrow, Krosan HeroRG
URTibor & LumiaUR
BWRGUKarona, False God "Allies"UGRWB
UWLavinia of the Tenth (In progress)WU
Mono Red's Strengths and Mono White's Strengths
Stalking Vengence is a Warstorm Surge on a stick and could easily replace Where Ancients Tread
Avacyn is a house in this deck cause it even protects your lands
Sigarda, Host of Herons is amazing in my meta as its full edic effects.
Elderscale Wurm and Blazing Archon are both ways to stall the opponent while you lay down more beast
Primal Surge has won games for me on its own.
To improve card quality and better(planned) interactions with Mayael: Sensei's Divining Top (or budget Crystal Ball, Jar of Eyeballs), Sylvan Library, Mirri's Guile, Scroll Rack