Other reasons Pacifism effects suck are that you can also still sac off the creature for value, bounce and recast it free from its aura, give it protection such that the aura falls off, or simply kill the Pacifism and have a potentially flash haste version of your guy back
Second ability is more related to Twilight Sparkle's mastery of magic and being to call up one of the hundreds of psells that she knows
In the right build, this is going to let you play through a lot of your deck, especially with cards like Urza, Grand Architect and Metalworker in the mix
This syncs perfectly with Celebi ex's attack, which allows a player to flip a coin for every Grass Energy attached to the card and deal 50 damage for every head
The Bad News You know those Izzet Prowess and Omniscience decks that are already the best in the format
This enables Super Polymerization to be chained to the Summon of Predaplant Verte Anaconda before it got banned