It works about half the time. The only think that can counter a "energy field" and ivory mask is a blue control deck or "oblivion ring" heavy decks. So as long as I get those out I can just sit until I draw the right cards. I try not to use "Idyllic Tutor" with an energy field out unless I have another one in hand, or if I have the "moat" and "Mystic Decree" So... "Moat" and "Mystic Decree" protects against annihilator "Ivory Mask" protects against discard, mill, direct damage and whatnot. "Greater Auramancy" times two will give everything on my field shroud to protect against "destroy target enchantment" affects. "Dovescape" is really just to cap off any enchantment field wipes. At that point there is not a card in the game except "Felidar Sovereign" that will make me lose.
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Where are the "Ondu Clerics"? Any allies deck with white should have them. "Jwari Shapeshifter" are a staple of blue allies decks. "Harabaz Druid" will solve tri-color mana problems. Take out any creature that isn't an ally. Even that 7drop 8/7 flyer isn't as good as triggering the five or so ally abilities that you would have by the time you can afford a 7drop. You can consider replacing "Explore" with "Sea Gate Loremaster". "Explore" is only good is you draw it in the first three turns and had 3+ land in starting hand. Add: "Ondu Clerics" "Jwari Shapeshifter" Remove: "Turntimber Basilisk" "Æther Figment" "Caller of Gales" "Goliath Sphinx" "Sejiri Merfolk" "Loam Lion" Replace: "Explore" with "Sea Gate Loremaster" "Khalni Gem" with "Harabaz Druid" It looks good for a deck built from available cards, but needs some work to beef it up. Remember that allies don't like spells as much as creature abilities and they don't like creatures who aren't allies. Keep those principals in mind and you will have a well-structures allies deck that fits your play style.