msem-instigator

Hexproof
Whenever an enchantment enters the battlefield under your control, draw a card.

Target opponent may draw two cards. If they do, you draw four cards. Otherwise, you create four 1/1 red Elemental creature tokens.

Lifelink
Whenever Infectious Ego enters the battlefield or attacks, exile the top card of target opponent's library. If it's a land card, that player gets a poison counter. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

This spell costs {1} less to cast for each artifact and/or enchantment you control.
Trample
Exile a cryptic permanent you control or a cryptic card from your graveyard: Observer of Aeons gets +1/+1 until end of turn. (Artifacts, enchantments, and modal spells are cryptic.)

Whenever you cast an enchantment spell, you may put target creature on the bottom of its owner's library.