Prodigious Growth

Enchant creature
Enchanted creature gets +7/+7 and has trample.

Mythic Proportions

Enchant creature
Enchanted creature gets +8/+8 and has trample.

Eldrazi Conscription

Enchant creature
Enchanted creature gets +10/+10 and has trample and annihilator 2. (Whenever it attacks, defending player sacrifices two permanents of their choice.)

Academy Researchers

When Academy Researchers enters, you may put an Aura card from your hand onto the battlefield attached to Academy Researchers.