Some abilities, such as Nullhide Ferox, like to be discarded by a spell or ability an opponent controls. I am seeking ways to proactively cause these abilities to trigger. A few ideas I had are…
- In Yu-Gi-Oh!, there are cards similar to this, and there are text-changing effects obviously designed to pair with them. I have found some text-changing in MTG, but nothing related to discarding yet.
- Exchanging control to an opponent of Siren of the Silent Song or Deadbridge Shaman, or similarly exchanging control of spells, but these combos require three specific cards to be drawn and are clunky.
- Controlling an opponent…while they already have a discard option available, but they would have likely used it anyhow.
- An ideal card might be something like an X-and-a-green Instant with an effect "search your library for creatures with the same name as each other with mana value X and put one of them onto the battlefield under each player’s control." This could grab, i.e., Acquisitions Expert. I thought something like this might exist, but I couldn’t find anything.
Are there sensible (i.e., at most two drawn cards and four mana) strategies to use these abilities proactively, or are they only good for the sideboard? I am mostly interested in Pioneer format options.