mtg cards with disturb Malevolent Hermit – THE ART OF DAARKEN Blue Enchantment Aura Overwhelmed Archivist MTG - Innistrad:

It gains deathtouch and indestructible until end of turn. Your skill, dexterity, and moral flexibility make you a valuable asset to your guild

You already can't achieve your first goal, which is to put a heroic creature into play

I would generally value the bonus milling at zero or perhaps even a slight negative if it risks helping out my opponent, however, so the base effect must really be strong enough

After transforming, it shifts into an aggressive engine that copies creatures through blight, creating temporary attackers that pressure life totals fast

But its only an ETB effect, which weakens it, and it requires mana to use

Hushwing Gryff $4 Hushwing Gryff started at $2 and is already up to $4