#3 Liliana, Heretical Healer (Magic Origins) Ah, Liliana
It uses green's high mana production to ramp out large threats and then turns them sideways, swinging in for massive damage
Cankerbloom has to sacrifice itself to use its ability, unlike Reclamation Sage, but it has superior stats and can choose to proliferate instead of destroying an artifact or enchantment
Be careful activating Solphim's indestructible ability when it's plausible that an opponent is holding removal
Suddenly there is a format based around legendary creatures that can at least make these cards playable in some fashion
Mechanically, Zurgo, Thunder's Decree is the perfect commander if you're looking to build a commander deck built around the mobilize mechanic (also introduced in Tarkir: Dragonstorm)