If an effect causes a creature with changeling to become a new creature type, it will be only that new creature type (unless the effect says "in addition" or similar)
A Last Resort - The Rip Test The very last resort is the rip test
Taking into account the mana cost, method of preparation, and potential impact on a game, it feels fair to place Emeritus of Truce in the middle of the pack

This deck contains: 1 60-card starter deck including 2 foil cards 11 Tokens 1 Rulebook 1 Booster pack containing 12 randomized cards Decklist: Amethyst & Steel 2 Akela - Wolf Pack Elder 2 Arthur - Wart 1 Fa Zhou - War Hero 3 Giant Cobra - Ghostly Serpent 3 HeiHei - Rambling Rooster 2 Helga Sinclair - Tough as Nails 1 Iago - Giant Spectral Parrot 3 Jafar - Aspiring Ruler 1 Jafar - Newly Crowned 2 Kashekim - Ancient Ruler 2 King Hubert - Phillip's Father 1 Madam Mim - Cheating Spellcaster 3 Mufasa - Respected King 2 Pain - Impudent Imp 2 Panic - High-Strung Imp 3 Rajah - Ghostly Tiger 1 Raya - Guidance Seeker 3 Razoul - Menacing Guard 2 Royal Guard - Bovine Protector 2 Tanana - Tribal Elder 2 Te Ka - Lava Monster 2 The Carpenter - Dinner Companion 2 Treasure Guardian - Foreboding Sentry 2 Amethyst Coil 2 A Very Merry Unbirthday 2 Double Trouble 2 Magical Maneuvers 1 Restoring the Crown 2 Retrosphere 2 Training Dummy Booster pack rarity breakdown: 2 Rares, super rares, or legendaries 3 Uncommons 6 Commons 1 Foil card of any rarity Related Products

Scar allows all Ally characters to get a +1 strength, and if Scar is exerted at the end of your turn, you could draw cards equal to the challenge strength of one of your Ally character cards, although you must discard two cards and banish that character
One and Done Some extra combat spells are single use, unless you can somehow recur them