Sphinx of MagosiHow it works & interactions with other cards

Understanding the Ability

Sphinx of Magosi features an activated ability costing {2}{U}. Unlike many draw effects, this ability is tied to the physical growth of the creature. Because the card drawing and the counter placement occur during the resolution of the same ability, your opponent cannot respond between you drawing the card and the Sphinx getting larger.

Step-by-Step Resolution

First, you pay the cost of {2}{U} to put the ability on the stack. Once it resolves, you first draw a card from your library. Immediately after, you place a +1/+1 counter on Sphinx of Magosi. If the Sphinx is removed from the battlefield in response to the ability, you will still draw the card, but no counter will be placed as there is no creature to receive it.

Common Pitfalls

A common mistake is forgetting that the Sphinx must be on the battlefield for the counter to be applied. If an opponent uses a removal spell while the ability is on the stack, the draw still happens, but the 'growth' part of the effect fails. Additionally, remember that this is an activated ability, not a triggered one, so it can be used multiple times in a single turn as long as you have the mana.

Strategic Timing

Since the ability does not require the Sphinx to tap, you can keep your mana open for counterspells or flash threats. If your opponent ends their turn without playing anything you need to counter, you can sink your remaining mana into the Sphinx's ability to maximize your hand size and the Sphinx's power before your next turn begins.

Interaction examples

Life Loss Synergy

Psychosis Crawler

With Psychosis Crawler on the battlefield, every time you activate Sphinx of Magosi, the draw step of the ability triggers the Crawler. Each opponent will lose 1 life, and the Sphinx will grow by +1/+1, creating a dual-threat engine that attacks both life totals and creature parity.

Bouncing Threats

Hullbreaker Horror

While Hullbreaker Horror is on the field, you can use Sphinx of Magosi to find more spells. When you cast those new spells, the Horror triggers, allowing you to bounce nonland permanents. This creates a loop where the Sphinx provides the fuel (cards) that the Horror needs to control the board state.

Instant-Speed Growth

If your opponent casts a spell that deals 6 damage to your 6/6 Sphinx of Magosi, you can respond by activating the Sphinx's ability. By paying {2}{U}, you draw a card and put a +1/+1 counter on it, making it a 7/7 before the damage spell resolves, allowing it to survive the hit.